Spencer

  

Mine Info

State: California

County: Mariposa

Elevation: 2,500 feet (762 meters)

Primary Mineral: Gold

Lat, Long: 37.55611, -120.01306



Spencer MRDS details

Site Name

Commodity

Location

Primary: "Spencer"
Primary: Gold
State: California
County: Mariposa
District: Whitlock
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type: Underground


Ownership

Production

Deposit

Owner Name: Leroy H. Dart, Et Al.
Company ID:
Percent:
Home Office:
Info Year:
Years: -

Record Type: Site
Operation Category: Past Producer
Deposit Type:
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year: 1883
Discovery Method:
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Mineral Deposit Model

Orebody

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Physiographic Detail:
Name:
Form:


Structure

Alterations

Rocks



Analytical Data

Materials

Ore: Gold
Gangue: Quartz


Comments

Comment Type:
Deposit
Comment PATENTED 20 AC. ; INFO.SRC : 1 PUB LIT
Comment Type:
Workings
Comment SHAFTS, WINZES, STOPES, DRIFTS.
Comment Type:
Production
Comment SMALL PRODUCTION 1898 , 1900 , 1932
Comment Type:
Deposit
Comment VEIN 3 - 6 FT THICK
Comment Type:
Geology
Comment MASSIVE TO SCHISTOSE PLATY GREENSTONE WALLROCKS. LAIZURE 1928 DESCRIBES SLATE HANGING WALL, DIORITE FOOTWALL
Comment Type:
Location
Comment UTM EST SW 1/4


References

Reference Category:
Deposit
Pages:
Reference: BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 306 - 307
URL:
Reference Category:
Deposit
Pages:
Reference: LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION, IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 117
URL:
Reference Category:
Deposit
Pages:
Reference: AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 13
URL:

Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

About The MRDS Mines Database

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.

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