At the time, 1890, the Author said There is, of course, nothing for us to learn from this imperfect and rudimentary gold-extraction process described here, which is doubtless destined to disappear ere long, before the progress of scientific mining, now making itself slowly felt throughout the far East. I think it advisable, however, to put on record all such crude efforts, if only to enable us to trace more completely the evolution of our modern systems of mining, and to teach us by what widely-divergent methods different races of mankind have attempted to solve one, apparently simple, problem.
Their method of mining was then, and is now, the following: A small water-furrow is first brought in at the highest possible level on a suitable hill-side, and the stream is turned down the hill. By means of a heavy long wooden crowbar, shod with a long strongly- made chisel-pointed iron socket, and with the help of the stream of water, which rarely exceeds 50 cubic feet per minute, the surface- soil and weathered country-rock are loosened and sluiced away. No trouble is taken to save any of the gold washed down, except in one or two instances where rude riffles have been inserted in the tail-race; the race is, however, carefully searched for bits of quartz showing visible gold, which are picked out and put on one side. The surface of the shales is thus stripped, and any veins of gold that may be laid bare are then worked. The principal mining- tool is a rough kind of pick, and the use of explosives, or even of wedges, is quite unknown. Neither shovels nor barrows are used ; their places are taken by broad hoes and baskets, a pair of the latter, swung at each end of a stick and holding at least 70 pounds, being easily carried up steep grades by a Chinese miner. The tunnels, small and irregular, usually incline steeply upward ; they are rudely timbered, and as timber decays rapidly in this climate, these workings cannot penetrate far into the hills, but soon have to be abandoned, and the whole series of operations has to be recommenced.
A party of 27 miners, who owned and worked a rich hillside, considered themselves to be doing well when their entire days output (they do not work night-shifts as a rule) was a little over half a ton of quartz. The quartz, as extracted from the reef, is cobbed down with hammers to about pass a 1 J-inch ring, and is then carefully hand-picked, all stone showing visible gold, sulphurets or any other favorable indications being sent to the mill and the restbeing thrown away. From one-eighth to one-half is thus rejected. I have assayed many samples of this refuse rock, which carries from 3 to 10 pennyweights of free milling gold to the ton, so that it is quite worth milling according to our modern ideas.
At first the mode of crushing adopted by the Chinese consisted in heating the rock red-hot, quenching it in water and then pounding it down and rubbing it between two stomps. About 35 years ago atilt-hammer, made entirely without iron and having a stone head, was introduced, and is still much used by individual miners. About twelve years ago the battery of three to six hammers, worked by a water-wheel, was first employed. It is said to have been copied from mills for crushing the materials of joss-sticks. Tilt-hammer rice-mills are also built. Such water-mills are usually the property of a party of miners working together.
The foot-mill shown in Figs. 1 and 2 is of the usual type, from which there are but few unimportant departures. The entire falling weight is about 45 pounds, and the length of drop about 20 inches; as a rule, these mills are worked at 15 to 20 blows per minute.
The mill shown is built entirely without iron; the stone that forms the base of the mortar is a piece of hard quartzite or of barren reef-quartz, the same material being used for the hammer-head, which is firmly held in its socket by wooden wedges, the socket being kept from splitting by a stout hoop of rattan twisted round it. Some of the mills use iron hoops, and some have iron spindles for the hammer to work on; with these exceptions and one or two other very unimportant details, the construction is always the same, though the dimensions may vary a little. There is scarcely a house in the whole district that has not one of these mills.
The Chinese usually work these mills for about eight hours per day. A shovelful of quartz is first thrown into the mortar and the mill is then worked by the foot of the miner, who stands on one or other of the stones shown in the drawings, grasping the uprights or else a cross-bar that is sometimes fastened across them.
When the quartz is supposed to be crushed sufficiently fine, the hammer-head is propped up, and the crushed stone is scraped out and sifted through a circular sieve 15 inches to 20 inches in diameter, and about 1J inches deep. The sieve itself is made of thin strips of rattan about 0.1 inch in width. There are from 36 to 40 holes per square inch, so that the width of mesh varies between 0.04 and 0.06 inch. A man can crush in a working day, with one of these mills, from 70 lbs. to 140 lbs. of stone, according to its hardness.
The number of heads in a power-mill varies between 3 and 6, depending principally on the quantity of water available. As the district is well watered, the large majority are 6-stamp mills; out of 11 power-mills which it contains, 8 are 6-stamp mills. Figs. 3 and 4 show the usual type of the latter mills, from which pattern there is practically no departure. I could not even induce the Chinese to try a curved cam instead of a straight one, as they seemed to consider such innovations dangerous ; and they added that wood and water were both cheap enough. As will be noticed, the construction of the water-wheel is extremely crudethe water, which issometimes brought down very steep hills from considerable heights in small, highly-inclined ditches, strikes the flat buckets with considerable velocity, so that the wheel is partly an impact and partly a pressure wheel; the buckets are never more than half-filled at the best, and the wheel is sometimes allowed to wade in tail-water to the full depth of the shrouding. Much power is accordingly wasted, the amount of water consumed in driving one of these mills beingfrom 80 to 100 cubic feet per minute. The average number of drops of each head varies between 27 and 32 per minute; the length of the drop is about 2 feet, and the effective falling weight of the head is about 70 lbs. Thus only about one-third of the theoretical power of the water is utilized, but of course much of this loss of energy is due to the friction of the whole machine, notably between the straight cam and the tailpiece of the hammer. There are usually 3 men per shift working one of these mills, 2 being engaged in looking after and feeding the machine, while the third sifts thepounded stone as already described, throwing back under one of the hammer-heads whatever will not pass the sieve.
The cost of one of these mills complete, including a substantial shed over it thatched with palm leaves, but excluding the water- furrow, is said to be about very little, and they are supposed to last from 5 to 7 yearsneeding, however, constant repairs.
A stone hammer-head lasts from a week to a month, according to its quality. They are made, as in the foot-mills, from boulders of quartz rock, and it is mostly one mans business to search for these boulders in the bed of the stream, and, when found, to dress them into shape.
I tested the degree of fineness to which these mills reduce the quartz by differential siftings of a number of samples, taken by spoon-sampling the heaps of crushed ore lying at various mills. The results of some of my tests are given in the following table :
It appears from the above table that a great deal of the ore is crushed very fine (too fine, indeed), while some is not fine enough. As about 40 per cent, of the ore will pass through a 6,400 sieve, there must be much over-stamping, resulting, no doubt, in the production of a great deal of float-gold and slimes.
After the mill has been running for a longer or shorter period, according to circumstances, a clean-up takes place. The crushed ore is carried out in large wooden pails to a Chinaman, who washesit, squatting down by the side of a square pit, through which a small stream of clear water is kept running. The implement used for washing is a flat, somewhat conical wooden dish, cut from the spurs of certain hard-wood trees, and fashioned with much care. It is known as the dulang, and much resembles the Spanish-American batea, except that the section of the former is that of a very obtuse rounded cone, while the section of the latter is approximately that of a sphere.
A section of a typical dulang is shown in Fig. 5. Much importance is attached to the correct shape of the conical point, as it is in this that the precious metal is gathered together. The dulang is filled with from 10 to 15 lbs. of crushed stone, according to its size, and this is washed by a curious circular, combined with a slight undulatory motion, by which the particles of light, barren quartz are swept over the edge of the dulang, which is held just dipping below the surface of the water in the pit, while the heavier particles are collected in the rounded apex of the cone. When nearly cleaned, the gold and concentrates are transferred to a smaller, very carefully made and polished dulang, about 1 foot in diameter, in which thequartz is washed off as thoroughly as possible, and the gold, by a skillful jerk, is thrown clear from the sulphurets, and finally collected in a small brass dish. The sulphurets still retain much coarse gold, to which they cling obstinately. They are ground as fine as possible on a stone and re-washed several times, a good deal of the gold being thus separated and added to that previously obtained. Even then the sulphurets still carry much gold, the larger portion of which is free. They are stored away in jars while wet and allowed to rust, and after a time they are sometimes re-crushed and re-washed ; very often, however, they are merely allowed to accumulate and are not treated further. The first tailings are re-washed, and then stacked.
The cleaned gold is dried and melted over a small forge provided with a box-shaped wooden blower of the usual Chinese type. The fuel is charcoal. Tiny, conical crucibles, capable of holding about a couple of ounces of gold are used; the gold-dust is melted in these with borax and niter as fluxes; the slag is lifted off the surface of the gold when the latter is supposed to be clean, by means of an iron rod, and the gold is then granulated by pouring into water. If it is not considered to be sufficiently soft and pure it is re-melted, and the process is repeated until the gold is quite soft. The principal impurities removed seem to be sulphur, arsenic, a little copper, and perhaps traces of lead. Both the granulated gold and the crude gold-dust, as also gold got from river-washing, are used as currency in this district, coined money being scarcely ever seen here, and then only in the form of the old dollar.
In a partial wash-up at one of these mills, during my stay in the district, the following results, considered to be exceptionally good, were obtained, the quantity washed being as nearly as possible 2000 pounds of crushed ore:
As a general rule, there seems to be left in the tailings about one- third of the gold originally present in the ore, while there must be a considerable additional loss of float-gold carried away in the process of washing, due to the original fineness of some of the gold in the ore, and to the over-stamping already referred to.
From the average of these two assays it would appear that nearly one-third of the original proportion of gold is still left in the tailings. I might quote numerous other assays, but the results in all cases were approximately the same; there were no really clean tailings at all, in spite of the fact that they were all the result of handling sur- face-ores, where practically the whole of the gold was free. The losses above indicated appear enormous, but it must be remembered that the thrifty Chinamen throw nothing awaynot even tailings; however completely, in their opinion, these may be exhausted, they still pile them up and keep them. When, for any reason, their mill would otherwise be idle, they re-pound and re-wash their old tailings, and always get some gold out of them. The piles of tailings are, however, left exposed, so that a considerable proportion gets washed down into the streams and rivers by the heavy rains that occur at each change of monsoon ; and there are a good many Chinese of the poorer classes who make a sort of living by washing the sands in the river-beds, the gold they get being principally, to all appearance, that which has been thrown into the rivers by the miners up stream. It is noticeable that there is no gold, or very little, to be found in the rivers above the points where there are mines in operation. A fair days work of one Chinaman in the river-bed (say six hours actual work) was found, as the average of several trials, to produce an output of 7.3 grains of gold about .940 fine, worth say little in localcurrency. This quantity of gold was obtained by washing 22 large dulangs of gravel, each holding about 70 pounds of dirt.From the average of these two assays it would appear that nearly one-third of the original proportion of gold is still left in the tailings. I might quote numerous other assays, but the results in all cases were approximately the same; there were no really clean tailings at all, in spite of the fact that they were all the result of handling surface-ores, where practically the whole of the gold was free. The losses above indicated appear enormous, but it must be remembered that the thrifty Chinamen throw nothing awaynot even tailings; however completely, in their opinion, these may be exhausted, they still pile them up and keep them. When, for any reason, their mill would otherwise be idle, they re-pound and re-wash their old tailings, and always get some gold out of them. The piles of tailings are, however, left exposed, so that a considerable proportion gets washed down into the streams and rivers by the heavy rains that occur at each change of monsoon ; and there are a good many Chinese of the poorer classes who make a sort of living by washing the sands in the river-beds, the gold they get being principally, to all appearance, that which has been thrown into the rivers by the miners up stream. It is noticeable that there is no gold, or very little, to be found in the rivers above the points where there are mines in operation. A fair days work of one Chinaman in the river-bed (say six hours actual work) was found, as the average of several trials, to produce an output of 7.3 grains of gold about .940 fine.
It is interesting to note that in custom-milling, of which there is a good deal done here (many of the fossickers sending all the gold quartz they collect, whether by mining or picking out of the river- gravels, to one of the water-mills for crushing), the charge made is equal to just a few $U. S. per (long) ton of quartz, this payment including the washing of the gold, but not, so far as I can make out, its cleaning and melting.
It is obvious from the above description, that the total quantity of stone crushed by all the mills in the district, supposing them all to be going simultaneously, and including the foot-mills, could not exceed some 12 tons a day at the best, an amount that could be far more economically and efficiently handled in a five-stamp Californian mill of moderate power. Yet the total annual output of gold from this district (including, however, alluvial as well as reef-gold) is said to be 4861 ounces, fully .900 fine. The total number of men engaged in mining, in one way or another, is close upon one thousand.
We use a variety of machinery combinations to liberate the gold and concentrate it for recovery. The all-inclusive Turn-Key Ore Processor will take a loader-bucket of ore and produce concentrated gold and sulfides with no hands-on activity by the operator. For a less costly production system, using hand-fed machinery, we offer a jaw crusher, hammer mill, and shaker tableeach one a stand-alone component.Or for smaller-scale sampling with industrial-grade equipment, our low-cost combination of a hammer mill with an attached sluice gives the owner the ability to test many thousands of pounds of material to get a representative bulk sampling of ore values.
The jaw crusher has been a staple of the hardrock mining industry since its invention. It is used as a primary crusher for all types of ores. The jaw typically takes the larger run of mine product and produces a sized discharge for feed to a secondary crusher such as a cone crusher, ball mill, or hammer mill. We have sold our jaw crushers to many different industries over the years, but the hard rock mining industry is still the #1 purchaser of our jaw crushers.
The hammer mill or ball mill takes the <3/4 discharge from the jaw crusher and pulverizes it to liberate the values in the ore (usually gold), and one of them is a component of our Turn-Key Ore Processor. The size of the powder from a hammer mill is controlled by the size of the openings in the screen, and the discharge is processed on the shaker table. The hammer mill will produce discharge in the 20-30 mesh size. If additional size reduction is needed, a ball mill is a conventional choice instead of the hammer mill. Take a look at the procedure to determine the liberation size for a specific ore type.
If the shaker table tailings are too coarse, they can be classified with a spiral classifier, and the over-sized discharge returned to the ball mill for additional grinding. When concentrating gold ore, our shaker table will get a high percentage of the free gold >325 mesh, even down to less than 400 mesh, equaling or out-performing any table on the market. The shaker table is a component of our Turn-Key Ore Processor and it makes quite clean cuts of <16 mesh slurry between the free gold, sulfides, and tailings. The operator can sell the free gold and send the sulfides to the refiner if they contain additional values.
The spiral classifier separates the shaker table tailings into fine and coarse fractions. The coarse material is directed back to the grinding circuit to liberate more value, and the fine materialis directed to the waste settling pond.
The spiral classifier is also useful as a simple dewatering device when water is in short supply. When the water level in the classifier pool is high, only the very finest of material is discharged from the tank, and the maximum amount of material is augered up the incline, draining the water as it climbs to the upper discharge point.
The MBMMLLC Turn-Key Ore Processor is made up of several modules and provides the operator with a reasonably priced, automated system to recover values with little operator involvement. The ore is loaded at the front end with a bucket and the gold and values-bearing sulfides are recovered off the shaker table. These are offered in 1, 2, and 4-5 ton/hr models.
For the small scale miner, these are the most cost effective, industrial grade processors available for continuous operation. The jaw crusher, hammer mill and fine gold shaker table form the heart of the processor.
For the small scale miner, these are the most cost effective, industrial grade processors available for continuous operation. The jaw crusher, hammer mill and fine gold shaker table form the heart of the processor.
We bought a turn-key ore processing system that included a hammer mill. The equipment did exactly what it was promoted to do and more. The combination of the jaw crusher with the hammer mill and shaker table did has good if not better than it was advertised by MBMM. I Read More
We have an MBMM 24 x 16 HD turnkey-scrap metal processor. We primarily process 6-8lb motor stators, smaller transformers and radiator ends to separate out the clean copper. We run this hard day after day and are very happy with how it performs and the on-going support from MBMM. This Read More
As a countertop fabricator, stone waste from the edges of the slabs is a constant headache and expense to deal with. We dispose of 5,000 lbs of cut-offs a day and the dumpster fees for disposal was getting out of hand. We purchased a crusher system from MBMM and have Read More
This customer reports they process mostlyPC boards populated with components and sell the concentrated mix of copper, base metals and precious metals to a copper refinery in Poland. Read More
The crusher (16 x 24 Jaw Crusher Module) is great! I probably have 300 hours on it and we are in the process of swapping around jaw plates. I am very impressed with your product and would have no hesitation in recommending you guys. Read More
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Historically Alaska was the fourth largest producer of gold among US states, behind California, Colorado, and South Dakota. It is likely that Alaska has moved up that list due to output from modern mining operations.
Idaho Mines View Idaho mines Of around 6,700 mines recorded in Idaho by the USGS, over 3,000 are listed as gold producers. Idaho ranked ninth for historical gold production with over 8 million ounces (statistic compiled 1968). The Silver Valley region of northern Idaho is the world's second largest silver producer. Montana Mines View Montana mines Of around 7,700 mines recorded in Montana by the USGS, over 3,500 are listed as gold producers. Montana ranked seventh for historical gold production with around 18 million ounces (statistic compiled 1968). Butte, Montana was one of the world's largest historical copper producers. Nevada Mines View Nevada mines Of over 12,000 mines recorded in Nevada by the USGS, over 5,500 are listed as gold producers. Over 3,300 mines are listed as silver producers. Nevada ranked fifth for historical gold production with around 27 million ounces (statistic compiled 1968), however it is likely that number is much higher today as gold mining is still a major industry in the state. New Mexico Mines View New Mexico mines Of approximately 3,800 mines recorded in New Mexico by the USGS, around 1,000 are listed as gold producers. New Mexico ranked twelfth for historical gold production with over 2 million ounces (statistic compiled 1968). Oregon Mines View Oregon mines Of approximately 7,700 mines recorded in Oregon by the USGS, around 4,500 are listed as gold producers. Oregon ranked tenth for historical gold production with almost 6 million ounces (statistic compiled 1968). South Dakota Mines View South Dakota mines Of approximately 1,000 mines recorded in South Dakota by the USGS, around half are listed as gold producers. South Dakota ranked third for historical gold production with over 30 million ounces (statistic compiled 1968). The Lead district of South Dakota was the single largest historical gold producing district in the United States. Utah Mines View Utah mines Of around 6,000 mines recorded in Utah by the USGS, only about 800 were gold producers. Utah ranked fifth for historical gold production with around 18 million ounces (statistic compiled 1968). Much of Utah's gold production was as a byproduct of copper mining at Bingham, one of the world's largest copper mines. Washington Mines View Washington mines Of approximately 6,000 mines recorded in Washington by the USGS, over 2,000 were gold producers. Washington ranked eleventh for historical gold production with around 3.5 million ounces (statistic compiled 1968). Wyoming Mines View Wyoming mines Of approximately 3,000 mines recorded in Wyoming by the USGS, only around 200 were gold producers. Wyoming is considered a minor gold producer and was not ranked among gold producing states by the 1968 USGS report.
Nevada ranked fifth for historical gold production with around 27 million ounces (statistic compiled 1968), however it is likely that number is much higher today as gold mining is still a major industry in the state.
South Dakota ranked third for historical gold production with over 30 million ounces (statistic compiled 1968). The Lead district of South Dakota was the single largest historical gold producing district in the United States.
Utah ranked fifth for historical gold production with around 18 million ounces (statistic compiled 1968). Much of Utah's gold production was as a byproduct of copper mining at Bingham, one of the world's largest copper mines.
This river drains the far southeastern part of Oregon starting at the Siskiyou Mountains of northern California and enters the Rogue River just west of Grants Pass, Oregon. This is a particularly rich part of the state and nearly all of the tributaries in this area have gold.
The mountains surrounding the Applegate River are also particularly well known for producing pocket gold, an occurrence where a considerable amount of gold will be found in a very small areas. Some of these pocket have contained many thousand of ounces of gold, and there are likely some more out there that havent been discovered yet.
The Illinois River is another golden river flowing through Southern Oregon in Josephine County. It starts in the Klamath Mountains of northern California and drains into the Rogue River near the small town of Kerby.
Some of Oregons largest gold nuggets have come from the Illinois River and its tributaries. One special creek worth mentioning is Althouse Creek, which has the distinction of producing the states single largest gold nugget reportedly weighing in at 17-pounds!
The Rogue River is the largest river in southern Oregon and has some exceptionally rich gold areas. Early miners recovered millions in gold from the gravels of the Rogue, and in recent years suction dredgers have been able to find very rich gold deposits also.
The headwaters of the river start as far east as the Cascade Mountains, but the richest stretch of the river starts near the town of Gold Hill where Bear Creek enters. The gold deposits continue downstream all the way to the Oregon beaches (which also contain gold). Just keep in mind that a large portion of the Rogue has regulations that limit the types of mining that you are allowed to do.
The South Umpqua River is not very well known for producing large gold nuggets, but it does have lots of fine gold dust that can really add up. Gold panning along the gravel bars of the South Umpqua can be very productive.
One nice thing about prospecting on the South Umpqua is the amount of exposed bedrock that can be found, in particular during the summer months when water levels are low. Carefully digging out the bedrock cracks with crevicing tools and panning out the material can yield a surprising amount of gold to the diligent prospector.
The Burnt River is a very rich gold-bearing river is Eastern Oregon, draining some of the richest areas in the entire state of Oregon. The richest stretch can be found in the steep canyon areas upstream from Huntington and Durkee.
The Lost Dutchman Mining Association has several claims within the Burnt River Canyon. You do have to pay a membership to join the club, but it is a good option if you would like access to a gold-bearing stretch of the river.
The Powder River is yet another gold bearing river in Oregon, starting in the Blue Mountains above Sumpter, downstream through Baker City, and eventually entering the Snake River on Brownlee Reservoir.
The upper reaches of the Powder River were mined with several bucket line dredges for many years, and miles of dredge tailings can be seen throughout the Powder River Valley. One of the dredges is now on display in Sumpter and you can walk inside of it and see the internal workings of this massive mining machine. It is one of the best preserved dredges in the world.
Yet another river that flows through Eastern Oregon is the John Day River. Several forks of this river drain some of the richest areas in the Blue Mountains. Dredging was done on many parts of the river, and many mining towns such as Greenhorn, Susanville, Dixie, and Canyon City are all located on very rich tributaries of the John Day River.
Canyon City in particular is worth noting because it was well-documented that this was the single richest placer gold deposit in the entire state of Oregon. Located just a few miles upstream from the town of John Day, some reports stated that the gravels payed as much as $500 per yard at a time when gold was only $19 per ounce!
Oregon is one of the best states to mine for gold in the US. The gold deposits are widespread but are richest in the southern part of the state just north of the California border near Grants Pass and Medford, and also in Eastern Oregon near the towns of John Day and Baker City.
There are dozens of rivers and hundreds of different gold bearing creeks throughout the state. These are the top-7 rivers that have historically produced the most gold, and there is still a lot of gold that can still be found today.
Almost 20 years after Crown Resources Corporation submitted an application to mine for gold at Buckhorn Mountain, Washington State, production finally began in 2008 through its now-parent company Kinross.
Buckhorn mine is located in north-central Washington State, approximately 76km from Kinrosss Kettle River gold mining facility. Crown Resources Corporation initially applied for a licence to build an open-pit mine at the top of the 5,600 mountain near the Canadian border.
This application received strong disapproval from local residents and environmentalists that wanted to protect the natural beauty of Okanogan National Forest, where the mountain is located. In 1992, the Okanogan Highlands Alliance was formed to consolidate activists activities.
In 1996, Kinross purchased Crown Resources Corporation for more than $100m and along with the acquisition gained the Buckhorn site. Since then, Kinross has built 8.5 miles of road, has installed buried power cables, built an administration building as well as a fuelling facility and power distribution plant. In total, Kinross has invested a further $100m at the mine. It has also changed all mining applications from open-pit to an underground mine.
In April 2008, the last legal barrier to starting production was removed and ore began to be produced in October. Production for 2008 was between 25,000oz and 30,000oz, incurred at a cost of between $365 and $385 an ounce.
The gold mine has an estimated 100Moz of deposits and an estimated mine life of between seven and eight years. It has a target production rate of 900t of ore a day. In 2010, the mine produced about 198,810oz of gold..
The ore is mined through three horizontal tunnels, called adits, through which equipment, personnel and rock are transported in and out. These measure 12ft 12ft and penetrate into the mountain by 1,000ft. Ore is extracted through openings in the mountain which is later filled to be used in combination of cemented sand, gravel and development rock.
An extensive water management plan has been prepared and must be adhered to and contains clauses such as reusing groundwater to minimise usage. The mine also features a state-of-the-art water treatment facility. In addition, conditions of the permit include conducting stream and wetland augmentation using treated water, riparian habitat enhancement and preservation as well as the provision of wildlife watering facilities.
Kinross is the third-largest primary gold producer by reserves in North America. It also has mines in Russia, Brazil and Chile, and in total employees about 5,000 people. In addition, to the Crown Resources acquisition in July 2008 it closed a friendly-acquisition of Aurelian Resources in which it gained a major gold deposit.
The Washington Prospectors Mining Association (WPMA) is the largest non-profit small scale mining association in the State of Washington. about the WPMA, Chapter Information, WPMA Claims Information, Gold Show Information, Past and
Washington has not been a major gold producer, but they have produced over are known and mining claims can still be worked at a profit in Washington. It can be purchased from State Department of Natural Resources, Geology and
Historically, the easiest approach to the mine was from Chilliwack, B.C., Canada, by following logging roads leading south along Slesse Creek (Silesia Creek in U.S.) to milepost 54. From the milepost, an overgrown trail ascends a cleaver between two avalanche chutes to the mine.
From the U.S. side of the border, the mine can be reached from a gravel road off of Mount Baker Hwy 542. This road currently leads to the nearby Lone Jack Mine and ends at Twin Lakes. The Twin Lakes area was historically used as a staging area for nearby mines included The Boundary Red Mountain Mine, The Lone Jack Mine, The Gargett Mine, and the Gold Basin Mine.
The Boundary Red Mountain Mine can be reached by following a foot trail from Skagway Pass near Twin Lakes, descending Winchester Creek to Silesia Creek, proceeding north to a point near milepost 55 and ascending 2000 feet through forest to the mine. For access by air, waste rock dumps at 4050- and 4707-foot elevations can accommodate a small helicopter.
The Boundary Red Mountain Gold Mine includes full legal title of approximately 94.5 acres of mineral rich land with 6 contiguous patented lode claims and mill sites including the Rocky draw lode, Klondike lode, Mountain Boy Lode, Glacier Lode, Climax lode, & Climax Ext No. 1 lode. Located in Whatcom County, Washington, U.S.A., the mine is approximately mile south of the Canadian Border. It is within close approximation of the currently active Lone Jack Mine.
The Mine development consists of 4 adit levels and 5 sublevels over a vertical range of 1050 feet. Total underground development is approximately 8,900 feet of drift and crosscut and at least 2000 feet of connecting raises and ore passes.
The veins of the Boundary Red Mountain Gold Mine group occur as five disconnected quartz fissure veins in the metamorphic Yellow Aster Complex of Devonian age. The host rocks consist of amphibole schist and a fine-grained metadiorite containing hornblende. Disseminations of pyrite occurs in both units. Moen (1969) reported that the gold-bearing veins . . . appear to have been formed during two stages of mineralization. During the initial stage, fractures in the rock were filled with quartz containing small amounts of iron sulfides, and chalcopyrite. Later, recurrent movement along the veins produced microbrecciation of the quartz permitting hydrothermal solutions containing pyrite, pyrrhotite, chalcopyrite, free gold and tellurobismuthite to infiltrate partings in the quartz fissure. The main ore mineral is native gold alloyed with minor amounts of silver. This is the same mineral assemblage and paragenesis found at the nearby Lone Jack mine. It is interesting to note that the Lone Jack Mine is currently in active production. The brecciated zones contain distinctive wavy brown bands of iron oxide in otherwise vitreous milky quartz. Most of the gold is so fine-grained as to be invisible to the unaided eye. However, Krom (1937) reported gold occurring in sheets as much as 1 inch square by approximately 1 micron thick, filling thin fractures in the quartz.
Five veins of the Patented Gold Mine were discovered on or near the Boundary Red Mountain claims. Of the five veins four have been identified as the Red Mountain vein, Gold Basin vein, Mountain Boy vein, and the Glacier vein (Krom, 1937). To date only the Red Mountain Vein has been mined. It can be traced along strike, insofar as topography permits, for more than 1500 feet. It strikes northeast, with dips ranging from 58 to 70 degrees southeast. Chaney (1992) reported, The quartz veins occupy a series of en echelon tensional gashes within the brittle metadiorite. The veins have an orientation of N30E to N50E with near vertical dips and a pinch and swell character. Some of the veins are terminated by faults, others die out in breccia zones and still others pinch out in the country rock. It should be noted that thickness varies from a thin shear at points to 10 feet in width in the space of a few feet along strike. The pinching and swelling of the fissure veins underground corroborates what is seen on the surface. The relationship of the veins to each other and to various levels is shown in Figure 2. The quartz fissure vein cropping out on the southeast skyline above the 500 Level portal is probably the Mountain Boy vein (Fig. 3) described by Krom (1937). It is at the approximate location of his point EE1 on plate 3 (DGER mine file). A short drift was driven on this outcrop and a 3-foot deep by 200-foot long trench extends to the east before disappearing in a cliff.
In 1992, Richard L. Chaney of Western Washington University submitted a thesis entitled A study of Gold Mineralization at the Boundary Red Mountain Mine, Whatcom County, Washington. His report concluded that Data from the Lone Jack mine, with a similar style of mineralization, are consistent with the data from the Boundary Red Mountain mine suggesting geologic continuity in the quartz fissure veins. The Lone Jack Gold Mine is located approximately 2.75 miles away. It is from this report that extralateral rights are estimated. Additionally, other Gold Mines adjacent to the Boundary Red Mountain Gold Mine may be available for sale.
C.W. Both and associates discovered the Red Mountain vein in 1897 and staked it the following year. The claims were recorded. Elmon Scott, a Washington State Supreme Court justice, took an interest in the mine and organized the Red Mountain Gold Mining Co., which acquired title to the claims and started work in 1902. In 1907, the Boundary Red Mountain Mining Co. assumed title to the property. A five-stamp mercury amalgamation mill was constructed in October of 1914. The following year, George Wingfield and associates of Goldfield Consolidated Mining Co. leased the mine and upgraded the mill to 60 tons/day with ten stamps, installed a water-driven Hendy-Francis turbine power plant on Silesia Creek, and generally improved the infrastructure. World War II interrupted the flow of men and materials, but mining continued at a slower pace. Work continued in stopes above the 500 Level until 1923, at which time a crosscut known as the 1200 Level was begun from the mill site. Krom (1937) reported, In March, 1925 . . . the [RedMountain] vein was struck 2200 feet from the portal. It proved to be merely a narrow stringer, two inches to eight inches wide. An inclined raise was carried southward in the plane of the vein to the 500 Level. After many delays the 500 Level was reached, with commercial ore showing some 200 feet below this level. In 1935 International Gold Mines Ltd., a Canadian company, was organized for the purpose of acquiring the Boundary Red Mountain Mine and equipment along with a nearby group of claims. In 1944 Tom Bourn of Bellingham purchased the mine and started a rehabilitation program. Mr. Bourn leased the property to Bert Boyer of Bellingham, Washington and then leased the property in 1960 to the Red Mountain Mining Company. Bourn willed the patented land to John P. Wiatrak, a geologist who had formerly worked with him at the mine.
Solo International Resources Ltd. of Vancouver, B.C., entered into a lease and option agreement based on an examination done by A. R. Grant in 1987 (DGER mine file). Grant later issued an amended report after spending the 1988 summer season at the mine. Grants examination appears to be the last comprehensive sampling and estimate of remaining ore reserves. Grant and Beach (1989) traced the Red Mountain vein 1500 feet south of a point directly above the southernmost 500 Level heading. Here, . . . it disappears under a small hanging glacier at the 6940 foot elevation. A 15-foot chip sample taken at this point assayed 1.066 ounces per ton gold. Additionally, according to the December 1987 report by A.R. Grant of the 119 Assay samples, sample number RM-115 from a 1.5 pyrite-pyrrhotite veinlet yielded a surprising value of 15.93 o/t Au.
Photos: Water discharging from 1200 Level portal. Miscellaneous piping and mill 500 Level portal with circa-1989 ladders and timbers Mill at the Boundary Red 500 Level Buildings at the Boundary Red BRMM Sample-small size BRMM mill to mine cart The mill itself opposite the 1200 Level portal. View is to the south The Boundary Red Mountain camp site and mill. Outcrop and adit (arrow) of the Mountain Boy vein Map of Mt. Baker Mining District News Report
SPECIALIZES IN LATE MODEL, GOOD CONDITION, USED MINING AND MILLING EQUIPMENT FROM MINESITES THAT WE ARE DISMANTLING AROUND THE WORLD
Atlas Mine & Mill Supply, Inc. has been serving the mining industry for over 40 years. We offer excellent valuesin good used mining and milling equipment from our extensive inventory. We have everything you need for all your underground mining and ore processing requirements,including complete mill circuits for sale.
Choose a Product Category Below: Agitators| Air Compressors & Generators | Air Tanks | Blowers | BullionContinuous Miners | Conveyors | Cranes | Crushers | Cyclones | Dust CollectorsFans | Feeders | Filters |Flotation Cells | Forklifts | Hoists | JumbosLab Equipment | Loaders | Locomotives | Mills | Mine Vehicles |Motors/Gear Boxes |Muckers | Pumps| Rock Breakers |Screens | | SeparatorsSlushers & Buckets | Specialty Items |Thickeners | Underground Trucks
Copyright 2010 Atlas Mine and Mill Supply Inc. Quality Used Mining and Milling Equipment, Spokane WA Questions? Email us at: [email protected]
Patented and unpatented mining claims, operating mines, placer, lode, open pit, for sale or lease, small-scale or commercial, joint ventures, for lease or sale, precious metals, minerals, gems, and more
NORTH CENTRAL WASHINGTON placer and lode opportunity. Historic mining area, some virgin ground. Proven reserves. Geological report, but no 43-101. Geologist estimates based on owners seismic testing and bore hole drilling that Billion Dollar reserves are present. Not operational. 785 total acres. 641 placer BLM, 20 lode BLM, 124 private patented. Mild climate, year-round mining opportunity. Report and data and photos available on signing of NCND. Call KIT CAVE (208)315-2255.
Near Ft. Irwin, California. Water is better than gold. 3 artesian, free flowing wells, electricity for mill site, subdivided permanent buildings are permitted. Titles and deeds clear. Call Desert Rat of 60 years. (760)267-0285. $800,000 CASH.
50+ acres private land plus 10 acres BLM lease, fully operational. Easy access. Fully permitted. Very good reserves indicated. 43-101 available, additional data available on signing a NCND. Call KIT CAVE, Consultant, (208)315-2255.
80-year-old 2nd growth timber. USFS on all sides. Live water on property (stream and spring.) Two patented lode claims, closed since 1930. 5 adits range in depth to 1,100 ft., assays, reliable data, 100,000 tons of ore on pad sites. Recent testing shows Rare Earth. Historic mining area. Data available on signing NDA. No 43-101. KIT CAVE, Northwest Territories, (208)315-2255.
(2) Twenty-acre claimsExtensive testing with actual extraction and recovery of gold. This mine has been owned for 20 years by one owner. Assays from 0.12 up to 1.0 OPT. Terms possible. Tel. (619)609-0234, or send email. Complete report available.
Yukon Territory. All under water license, 83 claims water license till 2028, 57 claims water license till 2030, reports and history, Geologist reports, roads to properties, approximately $1 million worth of equipment and infrastructure. $6.5 Million (USD) must be cashed out. Email contact information including phone number.
FOR SALETwo 20-acre placer BLM mining claims in Baker County, Oregon. Located in an established placer gold district. Established reserves at a very conservative 22,000 cubic yards at a grade of 0.58 grams (0.0186 ounces per ton). Reserves can likely be doubled by additional testing. Claims include a current Notice of Intent for sampling and bulk sampling. Excellent year-round access from maintained county road adjacent to the property. Normal operating season is April to October and often longer. Perennial stream Clarks Creek flows through the Lone Pine Claim. Mining geologist report available. $300,000. Send inquiries by email.
in prolific Getchell trend in Humboldt County, Nevada adjoins Nevada Gold Mines LLC (Barrick Gold) property. Past producer has sat idle long enough. Looking for a company that has the $ and know how to git er done and into production. Patented claims with much data available. Please reply with contact information for further data by email.
MINE 1 has 71 gold lode veins, 3 gold ore bodies, per nuclear magnetic resonance (NMR), on 265 acres. Good road access. MINE 2 has 65 gold lode veins, 1 gold ore body per NMR, on 105 acres. 200 TPD Mill equipment is included. Good road access. Mines are approximately 15 miles apart. Owner has a lot of the original mining engineer reports, maps, assays, and blocked ore. One of the best ways to own gold is to buy a significant gold mine or two ahead of potential hyperinflation!
21 Gold Placer Claims in Whitehorse Mining Division Camp and some Equipment 5 yr. Placer & Water Licenses until 2025 Land Use Permit Approval for moving equipment Geologists Report upon request
Historic steel head frame on patented land, shaft down 1,300 ft. at Tybo, Nevada. Shaft refurbished and in use by Alta Gold until 2000. Power available. Mine dump sampled by Nevada Bureau of Mines showed 29 oz. per ton silver. Sale includes adjoining 20 acre BLM mineral claim. $69,000. Owner financing. (775)901-8788 or send email.
BEST IN THE WEST! WORLD CLASS GOLD PROPERTIES! EQUITY JOINT VENTURES AVAILABLE! RICHEST PLACER & LODE ORES, CUSTOM MILLING FACILITIES. $ 8.5M+ CASH REQUIRED/P.O.F./NCND/EST. 10X INV. CAP./3-5 YRS. LIBERTY CREEK GOLD GROUP PH. (480)604-7913 OR SEND EMAIL.
Approx 2.5 million tons in Cariboo, B.C. This property is offered for mining purposes only. Title to it does not include ownership of the surface rights to use for residential or recreational purposes. Send email.
Arizona-based precious metal consultants furnishing projects for the ownership and development of quality mining and milling opportunities. Benefits include asset appreciation, cash flow from operations, and various tax benefits. We target properties that provide excellent growth potential while minimizing exposure to risk. Call (424)212-3256 or send emailto learn more.
11 ALASKA STATE 40-ACRE MINING Claims. Within 20 miles of Tok. No written production or drill data. History of mining operation including grandfathered cabin from 1984 Mining Operation permit. $45,000 OBO. Contact ZACK. (907)322-2903.
60-ACRE PLACER GOLD CLAIM IN Alleghany, CA. Located on Tertiary river deposit in the heart of the richest mining district in the State. The claim has mostly sat idle for decades and will take work to get started again, but there is great opportunity. Potential for lode discoveries as well. $37,500, willing to offer owner financing. Contact by email:
20+ ACRE, 1893 PATENTED PLACER property for sale $1.5M (subject to gold price changes), JV or possible owner finance with half down. Big bright gold. Siskiyou County, South fork of Salmon River, own both sides of river. Strong riparian rights, spring fed tailing ponds. 60x50 metal shop, 3b/2ba manufactured home. Excavator, trommel, generators, pumps, equipment, solar power phone DSL and 800x75 runway. Call or email for pictures and details. (415)971-9222; or send email.
Approximately 360 acres of Placer mining claims (2-160 acre claims) for sale just a few miles from Goldfield, Nevada. Average value from many assays over the past 15 years is +.12 ounce gold per ton, also tellurides on the property. Asking $250,000 terms available or trade for Fee Simple property, equipment, motorhome, ore concentrates, etc. Reply by email for information and location. UNION GULF RESOURCES, CORP. (619)609-0234.
230 Acres on Solomon River, 35 miles from Nome, which have been entirely dredged upstream. These claims begin where dredging stopped. $485,000. 20 to 25 ft. deep. Abuts the Nome-to-Council Road at Mile Post 35. Mining engineers report states possibility of 20,000 to 40,000 oz. of gold. A 4 diameter diesel-powered trommel is available for $20,000. (907)235-8975.
Owner selling due to health condition. Located east of Grass Valley by town of Washington, CA. $3,600 OBO. Make offer. Contact SAM BALDWIN, Harrington & Baldwin Mining Equipment Supply,470 E Main St. Grass Valley, CA 95945.
Offering 100 acres of remote Arizona desertuntouched dry river creeks & benches filled with tiny gold nuggets. There is literally gold to be found anywhere the shovel dropspossibly the best placer gold mining in the entire area. The purchase price of $965,000 includes loader backhoe, high quality Goldfield brand vibrating hopper/grizzly/trommel, dump truck, water pumps, generators, etc. If interested, call LAURA or STEVE at: (480)296-3773.
Buy these (46) forty-acre Alaska State Mining Claims northwest of Fairbanks. 1,840 acres total with only 10 acres mined. There is road access and plenty of water. All equipment and trommel included plus cabins. Geologist report reflects material ran $10.50 per yd. in 1983 at $350 an ounce. Permits are in place. Price reduced, for sale or lease $4 million. (970)629-8637.
One that you do not want to sell that should be operating and in production or a mine that you need help to operate. I have 34 years of mining experience. Please contact me by emailif this is of interest.
A hydraulic operation from 1882-1912, using antiquated methods recovered 3 million yards at .01 from a 3-mile section of a Tertiary river channel. 44 million yards remain in main channel plus 40-50 million potential in side channels and redisposition deposits. A large basic dike intersects the gold channel and forms its base for a mile. It contains strategic metals and rare earths, plus enough scandium to make it valuable.
Cleveland and Cleveland Extension mining claims in Inyo County, California. Adits to 800 length. 10 -12 principal veins in granite and quartz monzonite. Accessed mines in 2wd dually last month, but 4wd recommended. Thousands of tons of tailings to reprocess. Huge potential for persons with hard rock experience. Im only selling because Im permitting a placer operation in Nevada and cant split my focus. For more info, go to: mindat.org Go to California/ Inyo County/ Owens Valley/ Fish springs (Tinemaha mining district) click on Cleveland Mine. Asking $35,000 or consider offer, trade for 4x4 4-door pickup, small mining equipment, small excavator, tractor/ loader etc. Also have lode claim in San Bernardino Co. for $5,000 and many placer claims in Imlay, Nevada, Barber Canyon, Rock Hill area. For maps, pics and info call (814)688-4965.
CHASE, ALASKA802 ACRES OF patented placer claims and 80-acre lot with airstrip. Future potential wildlife wilderness eco development reserve. Ample water. Permits required. No royalties. $1,200,000 Send email or call(907)562-3382. Call, Text, Zoom.
Located SE of Fairbanks. 16 (40-acre) state placer mining claims. Includes heavy equipment in excellent condition, 4 Conex boxes full of tools, Cat parts and gold cleaning equipment. CRAIG (608)343-9973.
Consists of the Eureka & Donaldson Placer claims, located in eastern Oregon. Approx. 30 patented acres. Cracker Creek runs through entire length of property. Estimated 1.3 mil yards of pay available to be mined. Owners selling the full operation (land and equipment). Price & terms negotiable. Contact RUSS (701)580-1554. Serious inquiries only please.
Southwestern OR$400,000. 3/4 sq. mi.(475 acres) under Placer Claim. 20 acres under Lode Claim. 6 major en echelon quartz fissures. Excellent production history. 3 established lode mines with free-milling ore (that weve located). Some ore out of 2nd level mine over 100 OPT in some bodies. One known pocket extraction in order of 90 lbs. in 1905. 1/4 mi. of premier mining creek access. 1,200 sq. ft. (approx.) house with open well. 3-level mill building w/ore hopper. Closed circuit pilot mill4 tons per day. Electric line power onto property. Claim in moderate, mixed conifer timber. 1/4 mile from paved road. 12 miles from services on paved highway. Contact: BILL by email.
FOR SALE: 3 Contiguous Patented Placer Gold Claims (59.92 acres)$700,000. Equipment sold separately. A few miles south of Lake Almanor, CA. Feather River runs through the middle of the property. Owner will consider 2-year MINING LEASE OR TRADE for property in Washington, Oregon or So. California.
(3) 40-Acre state placer claims in the Upper Cache Creek Basin. Good access. Active mining adjacent. Good water. Easy to permit. High potential placer site for very reasonable. $24,000 for all. Call/txt (208)304-7483.
CLAIMS FOR SALEFour contiguous gold placer claims in Historic Ophir Gulch, Greaterville, AZ. Total of 120 acres within Coronado National Forest on east flank of Santa Rita Mountains, 45 miles south of Tucson, AZ. Excellent access, camping and ATV trails. LUMP SUM. $12,000. DAVE TAYLOR (314)808-5858.
Koyukuk Mining District with grandfather rights. Access by road, airstrip, winter trail. Proven placer ground. Fines to large nuggets. Health issues encourage retirement. Serious offers will be considered. (907)388-6769,
Closely held property ownership. Proven mineral reserves. Onsite plant commissioned/operational. Seeking lessor/developer/operator to assume immediate hands-on site operation. Investment and/or sweat equity ownership stake available. Contact by email or call(408)313-1595.
https://www.icmj.com/magazine/article/mud-creek-placer-mine-adventure-1614/ A WORLD-CLASS POTENTIAL PLACER GOLD DEPOSIT backed by authentic, verifiable, geological reports showing 73,000 PROVEN, mineable ounces of gold reserves and with the POTENTIAL reserves evaluated at 2.8 MILLION OUNCES of recoverable gold in the over 2,000-acre AK state claim block, located 140 air miles NE of Nome, at Candle, AK. Offering significant ROI for seed capital, lease, with advance on royalties, joint venture or outright sale. $3,285,000. Principles only please. Send email.
185 miles from Fairbanks. Price option without equipment$125K. Also available: D-7G Cat Dozer, Insley 1000 Excavator. Variable price options on the equipment. For more information, contact ROB GOREHAM (49er Mining Supplies) at (209)588-1635 or send email.
For SaleGold Property Eastern San Bernardino County, Calif. 4 Patented and 37 unpatented claims. Significant indicated gold resource with additional potential. Contact: MR. RICHARD VOIT For details go to: www.TheAmericaMine.com
With recent dramatic increases in gold prices there is no better time for accredited U.S. Investors to move investment capital into proven large-scale Alaskan precious metals mining projects as a hedge against US and global financial market uncertainties. Seeking U.S. buyers, investors or large scale miners for our lode, placer and open pit gold and copper mining projects in Alaska. For complete information contact: ANN ELLIS, (907)521-6480, [email protected] or PAUL TORGERSON, [email protected]
I am an experienced Arizona prospector who is retired and would like to help and teach new miners. I will help you find, stake and file your own claim. I know where there is open BLM ground that is good for placer and lode mining. I will take you into the mountains to test and help you file a claim. I can use my equipment or yours. In Arizona, you dredge differently because of less water. Why buy an existing claim at inflated prices when I can help you find your own unclaimed land that is just as good or better for a fraction of the cost. I can also teach you how to do research work and testing so you dont get scammed by unscrupulous claim sellers. Please call DENNIS (602)565-6561 or send email.
WHAT WILL YOU DISCOVER? Gold Mining & Rock Hounding 365 days a year in Arizona Good Access Gold Mining Claims for sale an hour from Phoenix and Prescott in the Weaver Mountains near Wickenburg, Congress, Stanton, and Yarnell. From casual prospecting up to commercial mining operations. Credit Cards Accepted. Call (928)HAS-GOLD (928)427-4653 www.ArizonaMiningClaims.com
With recent dramatic increases in gold prices there is no better time for accredited U.S. Investors to move investment capital into proven large-scale Alaskan precious metals mining projects as a hedge against US and global financial market uncertainties. Seeking U.S. buyers/investors for our Kahiltna Placer Gold Mine Project southwest of Talkeetna, Alaska. The resource is estimated at up to 174,000 ounces gold in 6 million cubic yards. Production cost is estimated at $485 per troy ounce of gold. Dividend distributions can be paid in cash or gold. Contact: ANN ELLIS (907)521-6480, [email protected] or TED STINSON (907)382-1710, [email protected]Get in Touch with Mechanic