Idaho - Maryland

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

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.

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.