Moore (1934) reported that approximately 15,000 tons were mined during this 14-year period, with a value of about $130,000 with gold held at $20.67 per ounce. Two companies, Cary Mining and Development Co. and Blue Stem Mining Co., leased or purchased the property between. 1916 and 1922, but no production is reported in these years. Chamberlain (1936) stated that the mine was shut down until 1934, at which time Northern Gold Corp. began operations when the price of gold increased to $35 per ounce. Northern Gold rebuilt the mill in 1935, increased throughput to 70 tons per day (tpd), and added a trial flotation circuit that was suspended after only six months use. Recoveries were not completely successful until 1938 when cyanidation and a revised flotation circuit were added. Northern Gold ceased mining and milling operations in 1941 after the War Production Board issued Government Order L-208 closing industries considered nonessential during World War II, but remained active on the property until 1945. The company mined approximately 50,000 tons, valued at $280,000, until shut down. As many as 40 miners and mill men had been employed during Northern Gold’s stewardship, working three shifts per day (Moen, 1980).
BODIE & TORADA CREEK PROPERTIES - Washington
History and Previous Exploration/Development Efforts
The Bodie Mining Company was organized in 1902 to expand development of the original location. Under the leadership of C.M. Fassett of Spokane, a ten-stamp mill was erected that used mercury amalgamation and straight-leach cyanidation (Chamberlain, 1936). Early production mined near-surface zones of high-grade ore containing as much as 20 ounces per ton (opt) gold. Initial milling practice yielded marginal recoveries, leading to several turnovers in management and ownership. The first period of mining ended in 1916, prior to the start of World War I. During this period, the mine changed hands four times: Bodie Mining Co. (1902–1907), Bodie Mining and Transportation Co. (1907–1909), Duluth-TorodaMining Co. (1910–1912), and Toroda Development Co. (1915–1916).
The Bodie vein structure intrudes a wide zone of hydrothermally altered and silicified, multi-lithic breccia and vein which forms an impressive backbone of a ridge over 7000 feet long, aligned in a north-south direction. This topographic ridge reflects the silica flooded breccia and spine of the Bodie mineralized structure. Gold mineralization in the Bodie district is similar in age as the epithermal (50-200 °C ) hot springs type gold deposits found in the Republic Mining District and the Knob Hill mine. Although the brecciated rocks contain widespread gold mineralization, historical mining operations have concentrated on a persistent vein up to 22 feet wide, striking N to N16°E and dipping 60 to 80°W. The Bodie vein contains a series of thin porcelain-like quartz stringers or veinlets separated by narrow bands of highly altered andesite and dacite. Moen (1980) reported that the precious metal mineralization in the district occurs as “dust-sized particles”. The only readily identifiable sulfide mineral is finely disseminated pyrite that is pervasive, both in the vein and the breccia. Propylite, sericite, and kaolinite are important alteration products; there is also widespread silica flooding. We do not own or control the patented claims where the original Bodie mine is located, our holdings are to the South and North and extend for several thousand feet along the strike of the zone on which the Bodie mine sits. We believe that this existing gold mineralization is extensive and due to certain geological features, there may not be surface expressions of gold mineralization in several areas of interest. Our primary interest is to explore the extensions of the Bodie vein and areas of extensive brecciation, alteration and quartz flood which are present on our leases and claims.
Proposed Future Exploration
An orientation survey will be implemented for soil and rock geochemistry and geophysics, including MagIVLF, SP and IP Sun'eys, Geologic mapping and sample geochemistry will be undertaken over the entire property to determine viable methodologies of operations and possible locations for early-stage core drilling. This work will accurately assess the property to determine if further work outlined in Phase II is necessary and determine which techniques of data acquisition are appropriate for the Bodie project. Additionally, due to the extensive hydrothermal alteration in the district, which is associated with gold mineralization, we intend to conduct clay alteration studies on our property. Future exploration will also be directed at evaluating the extensive breccia zones that are present on our holding.
Geo-Mineral Exploration acquired title to the five patented claims in 1970. Activities by Geo-Mineral are unknown. However, a number of lease and option agreements were conducted for the purpose of sampling and exploration as the price of gold escalated in the late 1970s and early 1980s: Vieco Resources, Ltd., Vancouver, B.C. (1974); Malabar Mines, Ltd. (1980); Noranda Exploration, Inc., and Western Land and Resources, Inc. (1982); Freeport Exploration Co., Inc. (1984); and Crown Resource Corp. (1984, 1987).
The Bodie and Torada Creek properties lie within the Klondike Mountain volcaniclastic unit of Tertiary age within the Torada Creek graben, a major north trending feature lying parallel and to the west of the Republic graben structure which contains the Knob Hill and several other historically productive gold mines. Several volcanic units of intrusive, extrusive flow and volcaniclastic rock types fill both grabens. The middle member of the Klondike Mountain formation appears to be the best host for gold mineralization. Lithologies vary from light and dark andesite flows, volcanic breccia and conglomerate to argillite and tuffaceouss units associated with hematite.