Maryland · Montgomery County
Past Producer

Irma Mine

Montgomery County, Maryland, United States
Gold
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Orebody formLINEAR
Materials
Ore mineralsQuartz
Geology
Host rockSchist
StructureReg.Trends: Northeast-Southwest
Tectonic settingAppalachian Foldbelt
Economic & production
Development statusPast Producer
Identification
Deposit ID10068006
MRDS IDW000910
RegionNA
Data scoreC
Coordinates38.98586, -77.20135
References
EMMONS, S.F., 1890, TRANS. AIME, V. 18, P. 401, 403-404