The Hilltop Claim is a chromium mine located in San Luis Obispo county, California.
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.
Hilltop Claim MRDS details
Site Name
Primary: Hilltop Claim
Commodity
Primary: Chromium
Location
State: California
County: San Luis Obispo
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
Not available
Ownership
Owner Name: U.S. Chrome Mines, Inc.
Home Office: California
Info Year: 1951
Owner Name: C. L. Seeley And Geo. Miller
Percent: 100.0
Home Office: California
Info Year: 1941
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Surface
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
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 (Location): CDM BULLETIN 134 GIVES THIS LOCATION AS SEC. 28, T. 29 S., R. 12 E. THE BUR. OF MINES RI 4783 SHOWS THIS LOCATION TO BE IN SEC. 12, T. 29 S., R. 11 E.
Comment (Environmental Factors): CHROMITE DEPOSITS IN THE CHORRO CREEK WATERSHED ARE NOT SULFIDES WITH POTENTIAL TO GENERATE ACID MINE DRAINAGE THOUGH THEY MAY ERODE CHROMIUM, ALUMINUM, MAGNESIUM, IRON, MANGANESE, TITANIUM, CALCIUM, SILICON, AND NICKEL TO THE WATERSHED. METALS WHICH APPEAR TO BE ERODING FROM INACTIVE MINES INCLUDE MAGNESIUM, IRON, NICKEL, AND CHROMIUM. SAN LISITO CREEK, PENNINGTON CREEK, AND UPPER CHORRO CREEK APPEAR TO BE THE MOST HEAVILY MINE-IMPACTED TRIBUTARIES IN THE CHORRO CREEK WATERSHED.
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. 6-8).
Reference (Deposit): CALIF. JOUR. MINES AND GEOL., V. 37, 1941, P. 162.
Reference (Deposit): U.S. BUREAU OF MINES RI 4783, 1951, P. 6-7.
Reference (Deposit): CALIF. DIV. MINES BULLETIN 134, 1953, PART II, CHAPT 2,
Reference (Deposit): P. 82.
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.
