Keystone Mine

Past Producer in Inyo county in California, United States with commodities Copper, Gold, Iron, Lead, Silver
Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.

Geologic information

Identification information

Deposit ID 10285394
MRDS ID M020642
MAS/MILS ID 0060270562
Record type Site
Current site name Keystone Mine
Alternate or previous names Keystone Group, Darwin-Keystone
Related records 10033982

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -117.5653, 36.26077 (WGS84)
Elevation 1390
Location accuracy 100(meters)
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Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019 S 041 E 19 SESESE California


Commodity Importance
Copper Tertiary
Gold Tertiary
Iron Tertiary
Lead Tertiary
Silver Primary

Nearby scientific data

Main Entrance (1) -117.5653, 36.26077

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0060270562
USGS Mineral Resources Data System MRDS M020642 MAS references MRDS

Reporter information

Type Date Name Affiliation Comment
Reporter 31-MAR-1991 Lowe, Nathan T. U.S. Bureau of Mines