The Mahoney Mine is a mercury mine located in San Luis Obispo county, California at an elevation of 1,220 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
Elevation: 1,220 Feet (372 Meters)
Commodity: Mercury
Lat, Long: 35.6228, -120.89530
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.
Mahoney Mine MRDS details
Site Name
Primary: Mahoney Mine
Secondary: Gould
Secondary: Buena Vista
Commodity
Primary: Mercury
Location
State: California
County: San Luis Obispo
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: Underground
Ownership
Owner Name: Harold J. Biaggini
Home Office: California
Info Year: 1981
Production
Not available
Deposit
Record Type: Site
Operation Category: Plant
Plant Subtype: Flotation
Operation Type: Surface-Underground
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
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 (Environmental Factors): THE LAS TABLAS CREEK MINES, PARTICULARLY THE BUENA VISTA AND KLAU MINES, ARE ACID MINE DRAINAGE PRODUCERS. IN INVESTIGATIONS INDEPENDENT OF THIS STUDY, NICKEL AND OCCASSIONALLY THALLIUM HAVE BEEN DETECTED AT CONCENTRATIONS NEAR AND ABOVE HAZARDOUS WASTE LEVELS IN WATER DISCHARGE FROM THE BUENA VISTA MINE. BUENA VISTA MINE DISCHARGE WATER AND SEDIMENT WERE SAMPLES IN 1986. IN WATER, ELEVATED ELEMENTS APPARENTLY ASSOCIATED WITH MINING ACTIVITY OR MINERALIZED ZONES INCLUDE ARSENIC, CADMIUM, CHROMIUM, COPPER, BERYLLIUM, IRON, NICKEL, SILVER, ZINC, SODIUM, MAGNESIUM, SULFATE, CHLORIDES, AND POSSIBLY CALCIUM. DISCHARGE WATER PH WAS LOW. SEDIMENTS CONTAINED THE FOLLOWING METALS ABOVE WATERSHED MEANS: ARSENIC, IRON, MERCURY, AND POSSIBLY BERYLLIUM, CADMIUM, LEAD, SILVER AND ZINC.
Comment (Deposit): ORE MINED AND MILLED ON SITE RETORTED AT MCDERMITT NV MERCURY SHIPPED TO NEW YORK A 15 PERCENT CONTINGENCY IS ADDED TO MINE CAPITAL AND OP COSTS BECAUSE SCRAPERS HAVE OCCASIONALLY BEEN REQUIRED
References
Reference (Deposit): CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD, CENTRAL
Reference (Deposit): COAST REGION. SURFACE WATER DEGRADATION BY INACTIVE
Reference (Deposit): METAL MINES IN NORTHWEST SAN LUIS OBISPO COUNTY, CA,
Reference (Deposit): DECEMBER 1993 (P. 8-10).
Reference (Deposit): CALIF. STATE MINING BUR. REPORT 15, 1915, P. 712.
Reference (Deposit): CALIF. JOUR. MINES AND GEOL., V. 35, 1939, P. 439.
Reference (Deposit): U.S. GEOLOGICAL SURVEY BULLETIN 922-R, 1941, P. 548-549, 559-560.
Reference (Deposit): U.S. BUREAU OF MINES IC 8252, 1965, P. 196.
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.
