Champion-Providence Mine was a consolidation of two adjoining gold mines in Nevada City, California subsequent to the California Gold Rush. After it became the Champion Group following annexation of additional adjacent mining concerns, it became one of the two most productive mining groups in the Nevada City Mining District, [1] alongside the North Star Mine, which purchased it in 1911. [2] The Champion-Providence Mine closed in 1920. [3]
The Champion mine is situated on Deer Creek, one mile west of Nevada City, at an altitude of 2,330 feet (710 m). The property had an original area of 27 acres (11 ha). [4] [5]
The Champion property, located in 1851 as the New Years, was not opened as early as the adjoining Providence mine and in 1888 the inclined shaft had reached a depth of only 300' (180’ vertical) and only 350’ of drifts had been driven. In 1892 a consolidation with the adjoining Merrified and 8 other claims had been effected and the development work consisted of a 3000’ drain tunnel driven from Wolf Creek on the vein and intersecting the shaft at a depth of 600'; an inclined shaft on the vein 1000’ in depth and the ten levels had reached a maximum length of 1000’ north of the shaft. Although compelled to suspend operations at intervals during the period from 1892 to 1902, owing to the Providence-Champion legal war, the Champion shaft had been sunk to a depth of 2400’ on the vein and a new shaft on the Merrifield vein had reached a depth of 900 feet.
The course of the vein is north and south, dipping easterly with an inclination of 42 degrees. The vein is a large one, varying from 1–6 feet (0.30–1.83 m) in width and averaging from 2.5–3 feet (0.76–0.91 m). The fissure is a contact between a syenite in the hanging wall and a slate in the foot. This is probably due to the size of the vein and its permanence in depth. [5] The property of the company consisted of a consolidation of ten claims, as follows: Merrifield, Climax, New Years, New Years Extension, Miiller, Phillips, Ural Relocation, Bavaria, Merrifield Extension, and Mary Ann. Two parallel veins were included in the property, the more eastern being the Merrifield, and the western, or foot wall vein, the New Years. [4] The Champion Mine holdings included the Merrifield and Ural, together with the Wyoming and other minor veins, comprising one of the most important vein systems of the Nevada City District.
The Merrifield vein which varies in strike from N. to N. 20° W. and had an average dip of 35° E., was one of the longest and most persistent veins in the Nevada City district. It could be traced from a point 3000’ south of the Providence shaft to the Mount Auburn mine, a total distance of 11,000 feet. South of the Providence shaft, the Merrifield vein at the surface occurred near and at the contact of the slates and granodiorite. North of the Providence shaft, the vein occurred wholly in the granodiorite. The fissures were the result of intense dynamic stresses which resulted in a movement of the granodiorite hanging wall upward a distance of 1200 ft. As a result of the intense movement, there was generally a zone of crushed and altered material reaching a maximum width of 30 ft. The Merrifield quartz veins occurring in this altered zone varied in width from one to ten feet; of the wider veins, from four to six feet was solid quartz. In some cases, the ore bodies occurred along parallel planes separated by a few feet of altered country rock, while in others they are lentieular in form. The ore was a milky white quartz carrying an average of 6% of sulphides, consisting of pyrite, chalcopyrite, galena and sphalerite. ‘Specimen ore’ rarely occurs. [6]
The Ural vein, which lies parallel and 500' west of the Merrifield, follows the contact of the granodiorite and contact metamorphosed Calaveras formation. It can be traced from the Champion shaft, N. 15° W. for a distance of 3500’, to within a short distance of the ‘New’ Nevada City shaft. At this point the vein takes a sharp bend to the westward (N. 70° W.) following the contact and can be traced to the Coan mine a distance of 4000’, making a total length of 7500 ft. From the point mentioned, a branch vein continues northward for a distance of 1000’ into the granodiorite, but appears to die out before intersecting the northern extension of the Merrifield vein. The Ural vein has an average dip of 35° E. and was worked in crosscuts from the 600', 1200’ and 1800’ levels. On the 600' level a drift was driven south from the crosscut on the Merrifield vein. This drift shows that 400’ south of the crosscut the vein enters an altered diabase and then splits, the east branch continuing south and then east in the diabase, while the west branch taking first a westerly and then a southerly course, finally enters an unaltered black slate. In the Providence mine the main ore body lies north of the point where the vein enters the diabase and was about 150’ in length with an average width of from 24; to 3 feet. The vein carries a black gouge on the foot-wall and several feet of altered granodiorite on the hanging wall. The sulphides are pyrite, chalcopyrite, galena and zinc blende amounting to from 5 to 8 per cent, and an occurrence of telluride of silver and lead is reported. The physical and mineralogical characteristics of the Ural vein, as shown by the Champion workings, are similar to those in the Providence ground. The Wyoming vein, which lies in the footwall of the Ural vein, dips to the east and joins the latter in depth. It seems probable that this vein in its northern extension is the one that intersects the Ural vein in the vicinity of the ‘Old’ Nevada City shaft. The northern continuation of the Ural vein in the Nevada City (Gold Hill) property was extensively worked since 1879, and in 1914 most of the ore being produced was coming from this source. The vein averages about 2' in width, reaching at times a maximum of 12 feet. As in the case of the Ural vein in the Champion-Providence territory the lode in the Nevada City ground shows the characteristic evidence of intense movement and alteration. The sulphides, however, average only 2% per cent. [6]
The mine was worked through an incline shaft 900 feet (270 m) in length, with an inclination of about 42 degrees. Eight levels were turned from the shaft with a maximum extent north of 528 feet (161 m), and south 180 feet (55 m). A drain tunnel extending north from the shaft 3,000 feet (910 m) into the hill relieved the mine of the surface water. [5]
Two shoots of ore were worked, one on the north and the other on the south of the shaft. That on the south was of high grade, while the north shoot was large, but contained low-grade ore. As depth was attained the north shoot pitched south more rapidly; crossing the shaft between the 6OO-foot and 900-foot levels. As the north, or low-grade shoot, approached the south shoot, an improvement in the grade of the former was noticeable, increasing as the shoots approached each other without any decrease in the grade and size of the rich shoot. The ore from the mine was of good grade, while the cost of mining was very small, varying from US$2.50 to $3 per ton. The ore was free milling, but at times very heavily mineralized. Ore of this character and quality ran from $150 to $200 per ton. Notwithstanding this heavy mineralization, the ore throughout yielded from 4 per cent to 5 per cent of sulphurets, with a total average value of $80 per ton, about $10 per ton being silver. The product was treated in the chlorination works belonging to the company. [5]
The water from the mine was light, the largest pump being an .66 feet (0.20 m) plunger pump, which sufficed to keep clear of water the workings below the tunnel level. Ventilation was afforded by a regular system of winzes from level to level. [5]
The ore was crushed in a fifteen-stamp mill. The weight of stamps was seven hundred and fifty pounds, dropping seven inches 90 times per minute, and crushing through No. 5 round-punched screens. The duty per stamp was one and two-thirds tons per day. No rockbreakers or self-feeders were used, but the introduction of the same was contemplated. Steel shoes and iron dies were used. The sulphurets were saved on six Frue concentrators. The chlorination plant owned by the mine was formerly the property of the Merrifield Company. It contained one roasting furnace 75 by 10 feet (22.9 m × 3.0 m) inside measurement. It had a capacity of four tons per day; when sufficient sulphurets had accumulated, a run is made. The sulphurets of the Mountaineer Mine was usually treated in these works. The cost of treatment was $8 per ton. The mine was provided with water power throughout; three Pelton wheels were used: a 5 feet (1.5 m) for plunger, and an 8 feet (2.4 m) for hoisting. Power for the mill was obtained from a 5 feet (1.5 m) wheel. Altogether a total of 75 inches of power water was used under a head of 120 feet (37 m) feet. [5]
In 1893, five men are employed in the chlorination works. Fifty-six men and boys were employed underground, plus three in the mill. Miners' wages underground were $3 per day. [4]
The Providence Mine was situated on the south bank of Deer Creek, 1 mile (1.6 km) west of Nevada City, at an altitude of 2,340 feet (710 m). [7]
The Providence Mine, located in 1858 as one of the earliest claims of the group, was first operated from 1861 to 1867. Owing to difficulties encountered in treating the concentrates the mine was not worked successfully until after the adoption of the chlorination process about 1870. In 1886 the shaft had reached a depth of 1100' and eleven drifts, the longest of which was 3600', had been driven on the Merrifield vein. A crosscut 547’ in length had also been run westward to the Ural vein from the 600’ level of the Providence shaft. After being worked at intervals by the owners and tributers the mine was closed in 1891, but was again reopened the following year. In 1894 apex litigation was instituted between the Providence and Champion and this was finally settled in 1902 by the purchase of the Providence property by the Champion company. The Providence had been developed to a. depth: of 1750’, and was credited with a production of $5,000,000 prior to its acquisition by the Champion. [6]
The property contained 154 acres (62 ha), with two veins worked. One vein was on the contact between the syenitic granite and slate formations, and the other lay entirely in the granite, 600 feet (180 m) to the east, and in the hanging wall. The two veins dipped east at an angle of 36° to 40°. The main shaft was upon the eastern or Providence vein, and the greater part of the work in the past was prosecuted on this vein. The incline shaft was 1,250 feet (380 m) in depth, ten levels being turned, and extending an average distance of 2,000 feet (610 m) on the vein. The Providence vein was a larger one, running from 2 by 20 feet (0.61 m × 6.10 m) in size, and averaging over 6 feet (1.8 m). Four shoots of ore were discovered on it, running from 150 by 320 feet (46 m × 98 m) in length. These ore shoots all trended to the north. The work on this vein consisted of driving and opening ground on the 1,100 feet (340 m) and 1,250 feet (380 m) levels, and sinking the main shaft. [7]
The western, or contact vein, was worked by means of a crosscut from the Providence vein on the 600 feet (180 m) level; this crosscut was about 600 feet (180 m) in length. The ore shoot on this vein was over 300 feet (91 m) in length, and was stoped out from the 600 feet (180 m) level to the surface. This ore was of high grade, the vein averaging 5 feet (1.5 m), and being heavily mineralized. A crosscut was driven from the 1,250 feet (380 m) level of the Providence vein, which gave, when the vein was intersected, 650 feet (200 m) of "backs " on the contact vein. [7]
A Burleigh compressor was added, and a National drill was used in this work. Safety Nitro No.2 powder was the explosive used. There was a forty-stamp mill on the mine, twenty stamps of which were overhauled and were in running order. The entire plant was operated with water power under a fall of 380 feet (120 m) at the mill and 320 feet (98 m) at the hoisting works. The plant was also provided with steam engines, used in case the water supply was temporarily shut off. A Dodd wheel was employed to run the compressor. Twenty-five men were employed in 1893; miners' wages were $3 per day. [7]
By 1919, the Champion Group included Providence, Home (Cadmus), Merrifield, Spanish, Wyoming and Nevada City mines. The owner was the North Star Mine Company at 22 William street, New York City. George B. Agnew, was president, Arthur De Wint Foote was manager, and his son, Arthur Burling Foote, was superintendent. [6]
The Champion property consisted of a consolidation of a number of mines and claims, containing about 440 acres (180 ha) and controlling 8,000 feet (2,400 m) along the Ural and Merrifield veins. The following claims composed the Champion group; the Bavaria, Bayard Taylor, Champion, Clima, Deer Creek (Cadmus) East Home, Home North, Home South, Mary Ann, Miller, Nevada (Merrifield), Nevada City Extension, New Years, New Years Extension, North Wyoming, Phillip, Providence, Schmidt (Nevada City), Soggs, Spanish, Ural (Cornish), Ural (relocation), West Providence, West Providence Extension, West Wyoming, Wyoming, Graves Placer mine, and Swartz Placer mine. The Providence, Champion, Nevada City, Wyoming and Home were the principal producing mines, and the combined production was variously reported to have been from $8,000,000 to $20,000,000. [6]
The' Providence property was purchased by the Champion in 1902. In 1905, however, the Champion was again involved in litigation with the Home (Cadmus) mine, and this suit was also settled in the early part of 1907 by the purchase of the Home holdings by the Champion company. The Home and Cadmus claims lying west of the Providence were developed by short tunnels and shallow shafts until about 1896, when active work began, and in 1902 the Home shaft had reached a depth of 700’, and a 30-stamp mill had been installed. [6]
The Nevada City or Gold Hill mine in which the Northern extension of the Ural vein had been extensively worked from 1880 to 1895 was included in the Champion holdings by purchase, after suffering from legal complications. Two incline shafts were sunk on the vein, one on the Schmidt claim near the southern end line 1000’ deep and the ‘new’ shaft on the Nevada City claim 1100’ northwest of the old shaft. From 1907 to 1911, the Champion mines experienced the usual vicissitudes of fortune that generally follow protracted litigation, when money is used for attorney fees,_rather than for systematic development work. In June, 1908, work was suspended, but a few months later tributers were working, and in 1909 the mine was bonded. Later the bond was forfeited, which led to more lawsuits. In 1911 the North Star Mines Company bonded the property, and after extensive exploration work the Champion group was purchased by the North Star Mines Company. The work so far accomplished by this company consists of unwatering the Champion shaft to the bottom or 2400' level; reopening and driving the 1000’ level 2500’ north on the Ural vein to the Nevada City ore shoot; driving the 2400’ drift north 3000'; crosscutting on the 1600' level connecting the Ural and Merrifield veins, and a drift which was driven a distance 2500’ north of the crosscut on the Merrified vein. Most of the ore being produced in 1914—15 was obtained from the ore bodies of the Nevada City mine. [6]
Owing to the fragmentary records of the gold output of the different properties, it is impossible to accurately ascertain the total production of the consolidated properties, which had been variously estimated over the wide range of from $8,000,000 to $20,000,000. The latter figure is undoubtedly too large. From authentic records, the production of the Champion Company from 1893 to 1913, has been $2,864,528 from 508,910 tons of ore. This total, however, does not include the production of the Providence or Home mines prior to their purchase by the Champion. According to Lindgren the production of the Providence mine from the Ural and Merrifield veins prior to 1896 was estimated-at $5,000,000, but this figure was considered excessive. From the data available, it seems probable that the combined production of the Ural and Merrified veins has been between eight and nine million dollars. [6]
The veins in these properties were entirely different from those at Grass Valley, and different methods of timbering and mining were required. The veins were generally not less than 2 feet (0.61 m) thick, and dipped at an average angle of 35 to 40 degrees, so that less shoveling was necessary than at Grass Valley, and less waste had to be handled. There was no specimen ore. The concentrates averaged about 6% of the ore and carried about 30% of the value. The ground was heavy and cost of timbering was high. Modified square setting was used. The life of timbers was said to be not over a year and a half. Long working drifts had to be watched and the ground taken frequently, and caution was needed in the stopes. According to Weed, the developments at the Champion group up to 1917 had not been satisfactory, the average yield not paying for operation in 1916. By 1919, however, the superintendent expressed satisfaction at the grade of ore, and it was evident that conditions had improved greatly since stoping in the deeper levels of the Providence began. [6]
The stamp mill contained 40 1,250 pounds (570 kg) stamps. Ore entering the mill from the tramway went over grizzlies. It then went to stamps which dropped 106 times per minute. Only outside amalgamation was used, and the pulp flowed over 6 feet (1.8 m) amalgamating plates to Frenier sand pumps, which sent it to hydraulic classifiers. The slime was sent to thickeners; the sand was concentrated in three double deck and two single deck Deister tables. The concentrate was de-watered, after which it was ground in a tube mill. The middling was sent to two Union Vanners. Tailing went from the tables to 7 sand vats. From the tube mill, the ground concentrate flowed over a 6 feet (1.8 m) amalgamating plate, fines going to cyanide and portion over 200 mesh returning to tube mill for regrinding. [6]
Kirkland Lake is a town and municipality in Timiskaming District of Northeastern Ontario. The 2016 population, according to Statistics Canada, was 7,981.
The Comstock Lode is a lode of silver ore located under the eastern slope of Mount Davidson, a peak in the Virginia Range in Virginia City, Nevada, which was the first major discovery of silver ore in the United States and named after American miner Henry Comstock.
The Minesota Mine is a former copper mine near Rockland, Ontonagon County in the Upper Peninsula of the U.S. state of Michigan. The Minesota was one of the most productive and famous early mines in the Michigan Copper Country.
Empire Mine State Historic Park is a state-protected mine and park in the Sierra Nevada mountains in Grass Valley, California, U.S. The Empire Mine is on the National Register of Historic Places, a federal Historic District, and a California Historical Landmark. Since 1975 California State Parks has administered and maintained the mine as a historic site. The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California". Between 1850 and its closure in 1956, the Empire Mine produced 5.8 million ounces of gold, extracted from 367 miles (591 km) of underground passages.
The Homestake Mine was a deep underground gold mine located in Lead, South Dakota. Until it closed in 2002 it was the largest and deepest gold mine in Western Hemisphere. The mine produced more than forty million troy ounces of gold during its lifetime. This is about 2,500 cubic feet (71 m3) or a volume of gold roughly equal to 18,677 US gallons.
The Monte Cristo Gold Mine is a gold mine in the San Gabriel Mountains near Los Angeles, California, USA.
U.S. Silver & Gold Inc. was a mining company based in Wallace, Idaho near Coeur d'Alene, Idaho. The chairman of the company was Bobby E. Cooper, the CEO was Tom Parker.
The Sunshine Mine is located between the cities of Kellogg and Wallace in northern Idaho. It has been one of the world's largest and most profitable silver mines, having produced over 360 million ounces of silver by 2001.
Ophir is an unincorporated community in the north-central part of Montgomery County, North Carolina, United States.
Good Hope Mine was the principal gold mine in the Pinacate Mining District, Riverside County, California.
The Bodie Mine is an inactive, privately owned gold mine in Okanogan County, Washington, United States. It is located within a triangle formed by the town of Wauconda, Washington the original town of Bodie, Washington, and the later ghost town of Bodie, on Toroda Road.
Beanland Mine, also known as Clenor Mine, is an abandoned surface and underground mine in Northeastern Ontario, Canada. It is located about 1 km (0.62 mi) west of Arsenic Lake and 4 km (2.5 mi) northwest of the town of Temagami in central Strathy Township. It is named after Sydney Beanland, who first claimed the mine site in the 1920s and was a director for the mine from 1937 to 1938.
The North Star Mine and Powerhouse are located on Lafayette Hill a short distance south of Grass Valley in the U.S. state of California. It was the second largest producer of gold during California's Gold Rush. In 1898, the largest Pelton wheel for its time was built for the mine. The North Star Mine Company also owned locations on Weimar Hill, adjoining and south of the North Star Mine. It shut down during World War II after its consolidation with the Empire Mine.
The Fort Knox Gold Mine is an open pit gold mine, 9 mi (14 km) east of Fox in the Fairbanks mining district of Alaska. It is owned and operated by Toronto-based Kinross Gold. Originally staked in 1913, after very minor mining at the location the property sat idle until being restaked in 1980. Following the initial exploration discovery in 1987, in 1992 the project was purchased by Amax Gold, which brought the mine to production. Amax Gold merged with Kinross Gold in 1998.
Crystal Mine is located near Juneau in the U.S. state of Alaska. The quartz ledge at the Crystal Mine was first discovered in 1895 by B. Heins. It was so named because of the large pyrite cubes which were found occurring in the surface outcrops of the ledge. Gold was extracted till 1905 from quartz using ten-stamp mill and from about 1,000 feet of underground workings yielded 1,210 ounces of gold. Intermittent production of gold is reported till 1925 but there are no records of the yield. The formation was determined as of 54 to 56 Ma age. The gold yielding resources available from the mine were assessed as 9,000 tons of material with yield of 0.21 ounce of gold per ton.
The Mohawk Mining Company was a major copper mining company, based in the Keweenaw Peninsula of Michigan, that was established in November 1898 and lasted until 1932. The company, between 1906 and 1932, paid out more than $15 million in shareholder dividends. The Mine is best known for the large amounts of mohawkite that were found on the property. The Mohawk mine operated until 1932; in 1934 it was purchased by the Copper Range Company.
The Sumdum mine is one of the largest lead and zinc mines in United States. The mine is located in north-western United States in Alaska. The mine has reserves amounting to 24 million tonnes of ore grading 0.37% zinc and 79.1 million oz of silver.
Greenside Mine was a successful lead mine in the Lake District of England. Between 1825 and 1961 the mine produced 156,000 long tons of lead and 1,600,000 ounces of silver, from around 2 million tons of ore. During the 1940s it was the largest producer of lead ore in the UK. Unusually for a 19th-century metalliferous mine in Britain there are very full records of its activities, dating back to 1825.
The Lucky Friday mine is an underground silver, lead, and zinc mine in the western United States, near Mullan, Idaho. Operated by Hecla Mining company, it is one of the few mines remaining operational in the Silver Valley of northern Idaho, producing 1000 tons of ore per day. The ore deposit type is Polymetallic veins of hydrothermal origin. The mining method used is underhand cut and fill mining.
The Silver Hill Mine was the first silver mine in the United States, later used primarily as a source of lead and zinc. Discovered during the Carolina gold rush at a Davidson County, North Carolina location later named Silver Hill, operations began at the site in 1839 under the Washington Mining Company. Increasing difficulties extracting the silver from ore heavy in lead and zinc led to the introduction of various new metallurgical processes and equipment. These were unable to fully stem losses of silver in refinement, and an increasingly convoluted production chain led to closure of the mine in 1852.
This article incorporates text from this source, which is in the public domain : California State Mineralogist's ''Annual Report of the State Mineralogist (1890)) This article incorporates text from this source, which is in the public domain : California State Mineralogist's ''Report of the State Mineralogist (1919)) This article incorporates text from this source, which is in the public domain : Division of Mines and Geology's California Journal of Mines and Geology (1893)
Media related to Champion-Providence Mine at Wikimedia Commons