| Deposit ID | 10261931 |
|---|---|
| MAS/MILS ID | 0060651119 |
| Record type | Site |
| Current site name | Black Rock Deposit |
| Alternate or previous names | North Black Rocks Deposit |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -117.44557, 33.81693 (WGS84) |
| Location accuracy | 500(meters) |
Political divisions (FIPS codes)
Riverside(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Lake Mathews(quadrangle 1:24,000 scale)
Santa Ana(quadrangle 1:100,000 scale)
Santa Ana(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Santa Ana(hydrologic unit)
Santa Ana(hydrologic accounting unit)
Southern California Coastal(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Riverside |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| San Bernardino | 004 S | 005 W | 18 | NW | California |
| Commodity | Importance |
|---|---|
| Tin Critical | Primary |
| Main Entrance (1) | Mesozoic granitic rocks, unit 2 (Peninsular Ranges) |
|---|
| Operation type | Surface-Underground |
|---|---|
| Development status | Prospect |
| Commodity type | Metallic |
| Significant | No |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060651119 |
CALIF. DIV. MINES AND GEOL. OFR 77-14, 1977, P. 962-963.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 30-MAR-1991 | Ridenour, James | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.