Colosseum Mine

The Colosseum Mine is a gold mine located in San Bernardino county, California at an elevation of 5,840 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: Colosseum Mine
Secondary: Colosseum

Commodity

Primary: Gold
Secondary: Lead
Secondary: Silver
Secondary: Copper

Location

State: California
County: San Bernardino

Land Status

Land ownership: Private
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
Type: Patented

Workings

Type: Surface

Ownership

Owner Name: Dallhold Investments Of Australia (Owner Of Colosseum)
Percent: 100.0
Home Office: Australia
Info Year: 1987
Years: 1987 -

Owner Name: Colosseum Gold, Inc.
Percent: 100.0
Home Office: California
Info Year: 1987
Years: 1987 -

Owner Name: Bond Gold Corp.
Percent: 100.0
Home Office: Colorado
Info Year: 1989

Owner Name: Lac Minerals U. S., Inc.
Home Office: Nevada
Info Year: 1996

Owner Name: Barrick Gold Corp. (American Barrick Resources Corp.)
Percent: 100.0
Info Year: 1996

Production

Year: 1993
Description: Gold Production 27131 Troy Ounces Gold

Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Leach
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Hydrometallurgy Unspecified
Year First Production: 1987
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y

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

Not available

Comments

Comment (Deposit): MINE WAS A SMALL UNDERGROUND OPERATION THAT CLOSED IN 1942 WAS RE-OPENED AS AN OPEN PIT MINE IN 1987-1988. MINING COMPLETED IN 7-92. PRODUCTION THRU 93 FROM STOCKPILES.

Comment (Reserve-Resource): 1987 PRODUCTION, MINE RUN ORE. 1987 PRODUCTION, LOW GRADE TO STOCKPILE. 1988 PRODUCTION, MINE RUN ORE. 1988 PRODUCTION, LOW GRADE TO STOCKPILE. 1989 PRODUCTION, MINE RUN ORE. 1989 PRODUCTION, LOW GRADE TO STOCKPILE. 1990 PRODUCTION, MINE RUN ORE. 1990 PRODUCTION, LOW GRADE TO STOCKPILE. 1991 PRODUCTION, MINE RUN ORE. 1991 PRODUCTIN, LOW GRADE TO STOCKPILE. 1992 PRODUCTION, MINE RUN ORE. 1992 PRODUCTION, LOW GRADE TO STOCKPILE. 1993 PRODUCTION, MINE RUN ORE. 1993 PRODUCTION, LOW GRADE TO STOCKPILE. 1994 PRODUCTION, MINE RUN ORE. 1994 PRODUCTION, LOW GRADE TO STOCKPILE. 1995-1996 PROD. MINE RUN ORE. 1995-1996 PROD., LOW GRADE TO STOCKPILE. 1997 PRODUCTION, MINE RUN ORE. 1997 PRODUCTION, LOW GRADE TO STOCKPILE.

Comment (Production): MILLING ORE. FULL CAPACITY = 1,110,000 MT ORE/YR. 1989 PRODUCTION = 75,473 OZ. AU FROM MILLING 1,090,000 MT ORE.

Comment (Environmental Factors): FIVE-STRAND BARBED WIRE FENCE AROUND THE TAILINGS POND. CHAIN LINK FENCE AROUND THE TWO SEEPAGE PONDS. WILDLIFE MORTALITIES HAVE NOT BEEN A PROBLEM TO DATE.

Comment (Environmental Factors): TAILINGS HAVE < O.5 PPM TOTAL CN IN LIQUIDS AND SOLIDS.

References

Reference (Deposit): CALIF. JOUR. MINES AND GEOL., V. 49, 1953, TABULATED LIST,

Reference (Deposit): NO. 82, P. 30.

Reference (Deposit): U.S. GEOLOGICAL SURVEY PROF. PAPER 275, 1956, P. 125.

Reference (Deposit): CALIF. JOUR. MINES AND GEOL., V. 53, 1957, P. 624-625.

Reference (Deposit): U.S. BUREAU OF MINES, 1990, MINERAL INVESTIGATION OF THE EAST

Reference (Deposit): MOJAVE NATIONAL SCENIC AREA, SAN BERNARDINO COUNTY,

Reference (Deposit): CALIFORNIA: TABLE 2, NO. 37, P. 63.

Reference (Deposit): LAC MINERALS LTD. ANNUAL REPORT 1993. P. 22.

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.