Mineral Resources Reports
United States Geological Survey 1907
The following was taken from a report of the Department of the Interior, United States
Geological Survey, Mineral Resources of the United States, for the calendar year 1907.
This is one of the important districts of Nevada which, with increased development, is
expected to come more rapidly to the front. In 1907 the camp yielded 9,050 tons of ore, worth $132,428 in gold,
$74,991 in silver, $112 in copper, and $7 in lead, a total of $207,538. The largest producer was the Montgomery
Shoshone Mining Company. The district lies 60 miles southeast of Goldfield, and the principal towns are
Rhyolite and Beatty. The district has railroad connection with main lines. The first mines were opened in the
autumn of 1904, and there are many locators.
The Bullfrog Gold Bar Mining Company completed a 10-stamp plate-amalgamation mill in 1908.
The crude ore was previously sold in Salt Lake City. The Bullfrog Skookum Mining Company has mined silver ore,
carrying a little gold, copper, and lead. The Bullfrog National Mining Company and the Bullfrog Reduction and
Water Company are both small shippers, as is the Gibraltar Mines Syndicate. The Homestake King Consolidated
Mining Company shipped a small quantity of ore for metallurgical tests and subsequently erected a 25-stamp mill
equipped for plate amalgamation and cyaniding. The mine is developed by a shaft 500 feet deep on the incline.
The Original Bullfrog Mining Company made a small production. The Tramp Consolidated Mining Company (including
the Tramp, Eclipse, and Dennis claims) has ores of grade reported too low for shipment and smelter treatment.
The Montgomery Shoshone Mining Company, the principal property in the camp, is developed by a 640-foot vertical
shaft. The company worked the Montgomery Shoshone and the Shoshone Polaris mines. The ores were worked by the
Bullfrog Reduction and Water Company at Rhyolite, and the American Smelting and Refining Company at Murray,
Utah, two thirds of the ores being milled.
United States Geological Survey 1911
The following was taken from a report of the Department of the Interior, United States
Geological Survey, Mineral Resources of the United States, for the calendar year 1911.
The metallic output of the district was valued at $97,791 in 1911, as against an output
valued at $467,949 in 1910. The larger part of the tonnage was ore and tailings, aggregating 28,650 tons,
treated by cyanidation, which yielded $80,918 in gold and 11,854 ounces of silver, valued in all at $87,201, or
an average of $3.04 per ton. There were 360 tones of gold and silver or shipped directly to the smelter, which
included several lots containing copper and lead. The principal production of bullion was made by lessees from
the Montgomery Shoshone mine, where some ore was mined and old tailings were re-treated in the mill on the
property. Lead ore, containing a small quantity of copper, was shipped from the Ready Cash mine and siliceous
ore from the Diamond Queen property. Other producers were the Tramp-Eclipse and Mayflower Bullfrog properties.
The latter is opened by an include shaft 570 feet deep and has 1,300 feet of drifts. The ore was treated in the
15-stamp mill and cyanide plant equipped for amalgamation, classification, and cyanidation of the coarse sands.
The oxidized ores in this property extend to the 500-foot level. In the deepest workings sulphides were
encountered.
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