Cobb Creek Prospect

The Cobb Creek Prospect is a gold and silver mine located in Elko county, Nevada.

About the MRDS Data:

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.

Mine Info

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Site Name

Primary: Cobb Creek Prospect
Secondary: Orvana project
Secondary: McCall zone

Commodity

Primary: Gold
Primary: Silver
Tertiary: Arsenic

Location

State: Nevada
County: Elko
District: Mountain City District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Humboldt National Forest

Holdings

Not available

Workings

Not available

Ownership

Owner Name: PanOrvana Resources
Info Year: 1988

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Sediment-hosted disseminated gold
Operation Type: Surface
Discovery Year: 1983
Years of Production:
Organization:
Significant: Y
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Sediment-hosted Au

Orebody

Not available

Structure

Type: R
Description: Roberts Mountains Thrust

Alterations

Alteration Type: L
Alteration Text: The Valmy Formation greenstone host rock has been argillized, potassium metasomatized, and weakly silicified.

Rocks

Name: Greenstone
Role: Host
Age Type: Host Rock
Age Young: Ordovician

Analytical Data

Not available

Materials

Ore: Gold

Comments

Comment (Economic Factors): In their 1988 Annual Report, PanOrvana Resources reported a geologic resource for the deposit of 3.2 million short tons of material grading 0.045 opt gold (2900 kilotonnes of ore containing about 5 tonnes of gold). The McCall zone within this property has an estimated resource of over 173,000 ounces of gold.

Comment (Identification): This record replaces MRDS record No. MP90052 which is an incomplete entry for the same deposit.

Comment (Commodity): Ore Materials: gold

Comment (Deposit): The deposit consists of disseminated and stockwork gold-silver mineralization in argillized, potassium metasomatized, weakly silicified greenstone of the Valmy Formation.

Comment (Location): The prospect is located about 8 miles north of Maggie Summit

Comment (Workings): The prospect has been developed by drill roads and prospect pits

Comment (Development): The first reported prospecting was done by Pemberton Explorationsin 1983, who drilled at least six holes to test several gold-arsenic soil geochemical anomalies found on the property the prospect was explored and drilled by several companies in the 1980s. In 2004, Staccato Gold Resources Ltd. acquired the Cobb Creek gold property in the Independence Mountains district on a 50/50 basis with Bell Coast Capital Corp. The Cobb Creek property, which now comprises an area of 1,500 acres, has seen exploration by BHP, Newmont, Geomaque, and Orvana since the discovery of the mineralized zone in 1983. The McCall zone within this property has an estimated resources of over 173,000 oz Au.

References

Reference (Deposit): Staccato Gold

Reference (Deposit): Resources Ltd. news release, 11/19/2004.

Reference (Deposit): Pan Orvana Resources Inc., 1988 Annual Report

Reference (Deposit): La Pointe and others, 1991, NBMG Bull. 106

Reference (Deposit): Schmauch and others, 1992, Mineral resources of the Independence Range Special Study Area, Elko County, Nevada: U.S. Bureau of Mines Mineral Land Assessment Report MLA 17-92, 141 p.

Reference (Deposit): NBMG MI-96; MI-97

Reference (Deposit): Northern Miner, 1988

Reference (Deposit): Spokane Spokesman Review, 1983

Reference (Deposit): Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.