| Deposit ID | 10140611 |
|---|---|
| MRDS ID | W024716 |
| MAS/MILS ID | 0060713005 |
| Record type | Site |
| Current site name | Big Horn Mine |
| Related records | 10110938 |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -117.64668, 34.21002 (WGS84) |
| Location accuracy | 10(meters) |
Political divisions (FIPS codes)
San Bernardino(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Baldy(quadrangle 1:24,000 scale)
San Bernardino(quadrangle 1:100,000 scale)
San Bernardino(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)
Federal lands
Angeles National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
Cucamonga Wilderness(Wilderness)
Wilderness FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | California | San Bernardino |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| San Bernardino | 002 N | 007 E | 31 | SESE | California |
| Commodity | Importance |
|---|---|
| Gemstone | Primary |
| Main Entrance (1) | Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Non-metallic |
| Significant | Yes |
| Type | Owner-Operator |
|---|---|
| Owner | Sam Speerstra |
| Interest | 100 |
| Home office | California |
| Year | 1990 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060713005 | |
| USGS | Mineral Resources Data System | MRDS | W024716 | MAS references MRDS |
CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 103, 1990,
P.
| 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.