Logan Mine

The Logan Mine is a manganese mine located in San Bernardino county, California at an elevation of 2,999 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: Logan Mine
Secondary: Trans-Oceanic
Secondary: Treasure

Commodity

Primary: Manganese
Secondary: Iron
Tertiary: Phosphorus-Phosphates
Tertiary: Silica
Tertiary: Sulfur

Location

State: California
County: San Bernardino
District: Pisgah

Land Status

Land ownership: BLM Administrative Area
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

Type: Located Claim

Workings

Type: Surface

Ownership

Owner Name: U.S. Bureau Of Land Management
Percent: 100.0
Home Office: California
Info Year: 1975

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
Mining Method: Unknown
Year First Production: 1934
Discovery Year: 1930
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Calcite
Unknown: Hematite
Unknown: Manganite
Unknown: Psilomelane
Unknown: Pyrolusite

Comments

Comment (Geology): MN OXIDES ASSOCIATED WITH CALCITE OCCUR AS REPLACEMENTS AND FILL MATERIAL IN FRACTURES AND BRECCIAS IN ANDESITE.

Comment (Economic Factors): 140 MT DAY OF MN CON. TO STEEL MILL AT FONTANA CA.

Comment (Ownership): MINE IS ON BLM LAND. LAND SURROUNDING THE MINE AREA IS BOTH PRIVATE AND FEDERALLY OWNED. PRIVATE LAND IS MOSTLY OWNED BY RAILROAD COMPANIES.

Comment (Production): DISCOVERY IN 1930 WHEN E.F. LOGAN AND L.W. PAGE LOCATED SIX CLAIMS. LOGAN LOCATED 12 ADDITIONAL CLAIMS IN 1952. MINE WAS LEASED TO SUCKOW BORAX MINES IN 1941, AND TO THE GREAT WESTERN CONSOLIDATED MINING AND MILLING COMPANY IN 1952. PRODUCTION WAS REPORTED IN 1934, 1942, 1958, 1959. TOTAL PRODUCTION WAS 705 MT OF 28% MN ROCK.

Comment (Geology): ORE OCCURS IN FAULTED AND BRECCIATED ZONES IN ANDESITE AND ANDESITE BRECCIA. THESE ZONES ARE INTRUDED BY A YOUNGER PORPHYRITIC ANDESITE DESTROYING PART OF THE ORE BODY. TWO NW TRENDING TABULAR ZONES COMPRISE THE LOGAN MINE THE NORTH ZONE STRIKING N70W IS 560M LONG. 80 M OF ITS STRIKE LENGTH IS DESTROYED BY INTRUSION. THE SOUTH ZONE, STRIKING N40W IS 490M LONG, 140M OF ITS STRIKE LENGTH IS DESTROYED BY INTRUSION. THE MAX WIDTH EXPOSED ON OUTCROP IS 35M, AVERAGING 32M. THE MAX THICKNESS EXPOSED IS 21M, AVERAGING 15M IN THE NORTH ZONE AND 18M IN THE SOUTH ZONE.

References

Reference (Workings): OVERBURDEN: 1 CUBIC M= 2.4 MT

Reference (Deposit): CALIF. JOUR. MINES AND GEOL., V. 39, 1943, P. 495.

Reference (Deposit): CALIF. JOUR. MINES AND GEOL., V. 49, 1953, P. 115-117.

Reference (Deposit): U.S. GEOLOGICAL SURVEY MISC. GEOL. INVESTIGATIONS MAP I-476,

Reference (Deposit): 1966, P. 3 (TEXT).

Reference (Deposit): TRASK, P.O. GEOLOGIC DESCRIPTION OF MANGANESE DEPOSITS IN CA

Reference (Deposit): CA. DIV. OF MINES AND GEOLOGY BULL. 152, 1950, P. 200-201.

Reference (Deposit): TRENGROVE, RUSSELL R. RECON. OF CA MANGANESE DEPOSITS.

Reference (Deposit): BUMINES RI 5579, 1960.

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.