| Deposit ID | 10260852 |
|---|---|
| MAS/MILS ID | 0060390271 |
| Record type | Site |
| Current site name | Cobb Pit |
| Alternate or previous names | Madera Rock Co Cobb Pit |
| Point of reference | Pit |
|---|---|
| Geographic coordinates: | -117.80532, 36.86916 (WGS84) |
| Elevation | 79 |
| Location accuracy | 10(meters) |
Political divisions (FIPS codes)
Inyo(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Lower Warm Springs(quadrangle 1:24,000 scale)
Saline Valley(quadrangle 1:100,000 scale)
Death Valley(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Eureka-Saline Valleys(hydrologic unit)
Northern Mojave(hydrologic accounting unit)
Northern Mojave-Mono Lake(hydrologic subregion)
California(hydrologic region)
Federal lands
Death Valley National Park(National Park)
National Park NPS(Type of land area)
NPS(Federal land areas administered by NPS)
| Country | State | County |
|---|---|---|
| United States | California | Madera |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 012 S | 020 E | 20 | NWSESE | California |
| Commodity | Importance |
|---|---|
| Sand and Gravel, Construction | Primary |
| Pit (1) | -117.80532, 36.86916 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Unknown |
|---|
| Type | Operator |
|---|---|
| Owner | Madera Rock And Asphalt Co., Inc. |
| ID | 0401847 |
| Home office | California |
| Year | 1981 |
| Type | Owner-Operator |
|---|---|
| Owner | San Joaquin Sand And Gravel |
| ID | 0401847 |
| Interest | 100 |
| Home office | California |
| Year | 1990 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060390271 | |
| Mine Safety and Health Administration | MSHA | MSHA | 0401847 |
CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 58, 1981,
P. 43.
CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 103, 1990,
P. 15.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 14-MAY-1993 | Ridenour, James | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 05/13/2003 |
|---|---|
| MSHA mine ID | 0401847 |
| Mine name (MSHA) | San Joaquin Sand & Gravel |
| Current operator | San Joaquin Sand & Gravel |
| Current controller (parent) | Ken Talley |
| Mine type | Surface (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.