The Idaho - Maryland is a gold mine located in Nevada county, California at an elevation of 2,539 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: 2,539 Feet (774 Meters)
Commodity: Gold
Lat, Long: 39.22444, -121.03778
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.
Idaho - Maryland MRDS details
Site Name
Primary: Idaho - Maryland
Commodity
Primary: Gold
Secondary: Silver
Secondary: Lead
Secondary: Zinc
Secondary: Copper
Location
State: California
County: Nevada
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Not available
Production
Year: 1893
Time Period: 1868 - 1893
Year: 1933
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Form: SHOOTS, SEAMS, STRINGERS, RIBBON - LIKE, FISSURES
Structure
Type: L
Description: 3 Faults Cut Veins. Diabase Dike 20 - 30 Ft. Thick.
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Scheelite
Ore: Gold
Ore: Sphalerite
Gangue: Quartz
Gangue: Dolomite
Gangue: Talc
Gangue: Ankerite
Comments
Comment (Deposit): PATENTED ADJOINS EUREKA CLAIM TO THE EAST ; INFO.SRC : 1 PUB LIT
Comment (Production): FOR YEARLY PRODUCTION VALUES BETWEEN 1868 AND 1893 , SEE MACBOYLE ( 1918 ) P. 187 . OTHER YEARLY VALUES IN JOHNSTON ( 1941 ) P. 95
Comment (Deposit): VEINS AVG. 2 1/2 - 3 FT. W/AVG 2 % SULFIDES
Comment (Workings): VERTICAL, INCLINED SHAFTS, DRIFTS, STOPES, CROSSCUTS, RAISES, DIAMOND DRILLING ( 11,650 FT ) WINZES
Comment (Geology): QTZ INDICATES RIBBONED LAYERS, 1 IN. THICK, IN PLACES. INTRUDED AT DEPTH BY GRANITE.
References
Reference (Deposit): WOLFIN, H. M., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 P. 403 - 406 .
Reference (Deposit): MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 185 - 191 .
Reference (Deposit): LOGAN, C. A., 1934 , SACRAMENTO FIELD DIVISION: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 31 , NO. 1 , P. 15 - 16 .
Reference (Deposit): LOGAN, C. A., 1930 , SACRAMENTO FIELD DIVISION: REPORT XXVI OF THE STATE MINERALOGIST; CALIFORNIA DIVISION OF MINES VOL. 26 , NO. 2 , P. 114 - 118 .
Reference (Deposit): 5) GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 53 , NOS. 3 AND 4 , P 580 .
Reference (Deposit): 6) JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 94 - 96 .
Reference (Production): MACBOYLE ( 1918 ) LOGAN ( 1934 ) WOLFIN ( 1941 ) GOODWIN ( 1957 ), JOHNSON ( 1941 )
California Gold
"Where to Find Gold in California" 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 California. Read more: Where to Find Gold in California.
