South Dakota · Lawrence County
Past Producer
Isadorah Mine
Lawrence County, South Dakota, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold, Silver
Commodity type
M
Deposit
Deposit type
Replacement
Deposit size
S
Ore control
North-South Ore Shoots Lying On Basal Quartzite Of The Deadwood Formation.
Materials
Ore minerals
Gold, Silver
Geology
Associated rock
Plutonic Rock · Sill Like Porphyry Intrusion
Economic & production
Development status
Past Producer
First production
1899
Identification
Deposit ID
10055496
MRDS ID
SD02053
Alternate names
Billie Mine, Golden Reward Group, Rock Bluff Claim
Region
NA
Data score
C
Coordinates
44.32385, -103.80169
References
US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688