Long Mary

  

Mine Info

State: California

County: Mariposa

Elevation: 1,499 feet (457 meters)

Primary Mineral: Gold

Lat, Long: 37.4975, -120.13167



Long Mary MRDS details

Site Name

Commodity

Location

Primary: "Long Mary"
Primary: Gold
State: California
County: Mariposa
District: Mt. Bullion
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type: Surface


Ownership

Production

Deposit

Record Type: Site
Operation Category: Producer
Deposit Type:
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year: 1900
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

Name: Slate
Role: Host
Description:
Age Type: Host Rock
Age in Years:
Dating Method:
Material Analyzed:
Age Young: Late Jurassic
Age Old:


Analytical Data

Materials

Ore: Gold
Ore: Pyrite
Gangue: Quartz


Comments

Comment Type:
Location
Comment UTM EST. N 1/2 ? MAY BE IN INDIAN GULCH ( 1962 ) 15 FT. QUAD. UTM MEASURED ON PROSPECT IN NE 1/4 SEC. 17 OR NW 1/4 SEC. 16.; LATITUDE-LONGITUDE VALUES CALCULATED FROM TOWNSHIP, RANGE, SECTION.
Comment Type:
Production
Comment NO PRODUCTION SINCE 1915 , WORKINGS INACCESSIBLE
Comment Type:
Deposit
Comment VEIN
Comment Type:
Workings
Comment IN 1920, WORKINGS WERE A 413-FT. INCLINED SHAFT WITH 4 LEVELS AND AN ADIT 263 FT. LONG, PLUS 2471 FT. DRIFTS, RAISES AND STOPES.
Comment Type:
Geology
Comment GEOL.DESC: WALL ROCKS ARE UPPER JURASSIC MARIPOSA FORMATION


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. 118 - 119 , 278 .
URL:
Reference Category:
Deposit
Pages:
Reference: CASTELLO, W. O., 1921 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY IN SEVENTEENTH REPORT OF THE STATE GEOLOGIST: CALIFORNIA STATE MINING BUREAU, P. 121.
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. 95 .
URL:
Reference Category:
Deposit
Pages:
Reference: AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 11 .
URL:
Reference Category:
Production
Pages:
Reference: BOWEN & GRAY 1957
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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