Eagle - Shawmut

The Eagle - Shawmut is a gold mine located in Tuolumne county, California at an elevation of 1,250 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

Name: Eagle - Shawmut  

State:  California

County:  Tuolumne

Elevation: 1,250 Feet (381 Meters)

Commodity: Gold

Lat, Long: 37.86722, -120.39556

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.


Satelite image of the Eagle - Shawmut

Eagle - Shawmut MRDS details

Site Name

Primary: Eagle - Shawmut


Commodity

Primary: Gold


Location

State: California
County: Tuolumne
District: Mother Lode Belt


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

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


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: L
Description: See Comments


Alterations

Alteration Type: L
Alteration Text: Pyroxenite Intrusive Has Been Sheared And Altered To Multiform Chlorite Schist And Subsequently Ankerized And Silicified. Chlorite Schist Sometimes Resembles Serpentine Schist Due To The Lusterous Green; In Places This Rock Has A Pseudomorphic Texture Much Like Serpentinized Peridotite But The Phenocrysts Instead Of Being Bastite Are Chlorite Embedded In A Fine-Grained Chlorite Matrix.


Rocks

Not available


Analytical Data

Analytical Data: SULFIDE ORE AS MUCH AS 15 PERCENT OF TOTAL ORE.


Materials

Ore: Gold
Ore: Pyrite
Gangue: Quartz
Gangue: Ankerite


Comments

Comment (Deposit): NOT MUCH WORK DONE BEFORE 1896 WHEN EAGLE AND SHAWMUT CLAIMS WERE JOINED TOGETHER. REFERENCES INCLUDE REPORT ON EACH MINE SEPARATELY

Comment (Workings): CROSSCUT ADIT 1,100 FT. THROUGH FOOTWALL TO LODE AND CONNECTING WITH INCLINED SHAFT 2,163 FT., 19 LEVELS AT VARIOUS INTERVALS

Comment (Geology): GEOL.DESC: SLATE INTERBEDDED WITH THIN LAYERED SANDSTONE AVERAGING 2 INCHES; LENSES OF LIMESTONE 2 TO 3 FT. THICK OCCUR ABOVE VOLCANIC ROCKS AND THINNER LENSES OF CONGLOMERATE OCCUR IN SLATE BELOW THE VOLCANICS. BETWEEN GREEN-CHLORITE SCHIST AND BLACK SLATE A NARROW BELT OF PYROXENITE OR HORNBLENDITE OR AN ALLIED HORNBLENDE-PYROXENE PERIDOTITE EXISTS. FOR A MORE COMPLETE GEOLOGIC DESCRIPTION SEE ADOLF, A., 1929


References

Reference (Deposit): TUCKER, W.B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 146

Reference (Deposit): KNOPF, A., 1929 , THE MOTHER LODE SYSTEM OF CAL.: U.S.G.S. PROF. PAPER 157 , P. 79


California Gold

Where to Find Gold in California

"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.