Moon Light Group

The Moon Light Group is a gold mine located in Modoc county, California at an elevation of 7,680 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: Moon Light Group
Secondary: Gold Shore
Secondary: Gold Shore Lode
Secondary: Moonlight
Secondary: Paradise
Secondary: Sunbeam
Secondary: Daisey
Secondary: Inner Fraction
Secondary: New Year

Commodity

Primary: Gold
Secondary: Silver

Location

State: California
County: Modoc
District: High Grade

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: George T. Cline

Production

Not available

Deposit

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

Physiography

Not available

Mineral Deposit Model

Model Name: Epithermal vein, Sado

Orebody

Form: VEIN

Structure

Type: R
Description: Warner Mountains

Type: L
Description: N Striking Shear Zone

Alterations

Not available

Rocks

Name: Rhyolite
Role: Host
Age Type: Host Rock
Age Young: Pliocene

Analytical Data

Analytical Data: ASSAYS RAN $750-1,700/TON AU ON SOFT BROWN EARTHY PART OF VEIN ON EAST WALL. OTHER ASSAYS RAN $13/TON AU IN WALL ROCK TO $39/TON AU IN RHYOLITE BRECCIA BELOW EARTHY MATERIAL

Materials

Ore: Pyrite
Ore: Gold
Ore: Silver
Gangue: Quartz
Gangue: Talc

Comments

Comment (Commodity): GOOD FLOAT WITH ONE 200-LB PIECE GIVING 5.1 OZ AU AND 4.3 OZ AG

Comment (Production): YEAR OF PRODUCTION IS 1946 .

Comment (Deposit): FROM 2 IN.-5 FT THICK. EARTHY PART 4-18 IN. THICK WITH 3 FT OF HARD RHYOLITE BRECCIA BELOW IT. ABOUT 2 IN. OF BLUISH-GREEN TALC WITH SOFT BROWN CLAY SEAMS INCLUDING QUARTZ AND RHYOLITE FRAGMENTS IS FROZEN ON EAST WALL OF SHALLOW SHAFT.; USGS MODEL MAY ALSO BE 25A: HOT-SPRING AU-AG.

Comment (Workings): DEVELOPED BY SMALL & SHALLOW OPEN CUTS, A 23 FT VERTICLE SHAFT AND A 410 FT ADIT

Comment (Geology): RHYOLITE DIKE IS BRECCIATED. IT IS ABOUT 125 FT WIDE AND 5-6 MI LONG ; GEOL.DESC: DEPOSIT IN RHYOLITE ZONE APPROX 125 FT. WIDE, AND 5 - 6 MI. LONG WITH STRIKE N 15 W.

References

Reference (Deposit): TUCKER, W.B., 1919, MODOC COUNTY, IN 15TH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 247.

Reference (Production): O'BRIEN ( 1948 )

Reference (Deposit): AVERILL, C.V., 1936, MINERAL RESOURCES OF MODOC COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32, NO. 4, P. 452.

Reference (Deposit): O'BRIEN, J.C., 1948, MODOC COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 44, NO. 4, P. 350.

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.