South Dakota · Custer County
Producer
May Group
Custer County, South Dakota, United States
Gold
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USGS source ↗
Commodities
Primary
Gold
Commodity type
M
Deposit
Deposit type
Vein
Deposit size
S
Workings
Underground
Orebody form
QUARTZ STRINGER
Materials
Ore minerals
Gold
Geology
Host rock
Slate,Schist
Associated rock
Hornblendite
Economic & production
Development status
Producer
First production
1890
Last production
1938
Identification
Deposit ID
10012468
MRDS ID
D008113
Region
NA
Data score
C
Coordinates
43.69802, -103.70029
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707