The Maryland Mine is a lead and silver mine located in Lemhi county, Idaho at an elevation of 6,949 feet.
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
Elevation: 6,949 Feet (2,118 Meters)
Commodity: Lead, Silver
Lat, Long: 44.7858, -113.44310
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Maryland Mine MRDS details
Site Name
Primary: Maryland Mine
Commodity
Primary: Lead
Primary: Silver
Secondary: Zinc
Secondary: Manganese
Tertiary: Nickel
Location
State: Idaho
County: Lemhi
District: Junction Mining 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: Salmon National Forest
Holdings
Type: Located Claim
Workings
Type: Underground
Ownership
Owner Name: Amonson, A. C. And Edwards, E. S.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Year First Production: 1906
Discovery Year: 1902
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Beaverhead Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration: Oxidation
Rocks
Not available
Analytical Data
Analytical Data: MN 9.9%, FE 27.2% INSOL. 31.2%, CAO 1.1%, AL2O3 0.08%, PB .32%, ZN 2.0% FROM ORE SAMPLE
Materials
Ore: Smithsonite
Ore: Sphalerite
Ore: Psilomelane
Ore: Galena
Ore: Anglesite
Ore: Pyrolusite
Gangue: Hematite
Gangue: Siderite
Gangue: Calcite
Gangue: Pyrite
Gangue: Limonite
Gangue: Quartz
Comments
Comment (Production): A Small Amount Of Mn Ore Was Produced In 1918.
Comment (Development): 6 Unpatented Claims
Comment (Geology): Ore Control Above Refers To Pb-Ag Deposits; Mn Deposit Occurs In Fractures And Open Spaces In Limestone
Comment (Geology): Original concentration process entry: Hypogene, Supergene
Comment (Geology): Original alteration entry: Local - Oxidation
Comment (Geology): Original ore control entry: Fault Controlled Contact Between Quartzite Footwall And Limestone Hanging Wall.
References
Reference (Production): Item 8, Thune, H. W., 1941, Univ. Of Idaho, M. S. Thesis; Item 9, Wicken, O. M., 1941, Univ. Of Idaho, M. S. Thesis
Reference (Deposit): Wicken, O. M., 1941, A Metallurgical Investigation Of Low-Grade Manganese Ore: Moscow, Idaho, Univ. Of Idaho, M. S. Thesis, 26 P.
Reference (Deposit): Thune, H. W., 1941, Mineralogy Of The Ore Deposits Of The Western Portion Of The Little Eightmile Dist: Moscow, Idaho, Univ. Of Idaho, M. S. Thesis, 37 P.
Idaho Gold
"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.
