| Deposit ID | 10115016 |
|---|---|
| MAS/MILS ID | 0060370674 |
| Record type | Site |
| Current site name | Cal Mat Pit |
| Alternate or previous names | Cal Mat Plant No. 12 |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -118.3748, 34.24081 (WGS84) |
| Elevation | 265 |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Los Angeles(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Burbank(quadrangle 1:24,000 scale)
Los Angeles(quadrangle 1:100,000 scale)
Los Angeles(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Los Angeles(hydrologic unit)
Ventura-San Gabriel Coastal(hydrologic accounting unit)
Southern California Coastal(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Los Angeles |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 002 N | 014 W | 30 | California |
| Commodity | Importance |
|---|---|
| Sand and Gravel, Construction | Primary |
| Ore Body (1) | Undated granitic rocks, unit 3 (Southern California) |
|---|
| Operation type | Surface |
|---|---|
| Development status | Past Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Private |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Conrock Co. |
| ID | 401717 |
| Interest | 100 |
| Home office | California |
| Year | 1981 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060370674 | |
| Mine Safety and Health Administration | MSHA | MSHA | 0401717 |
REF MESA REPORT OCT. 18, 77
CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 58, 1981,
P. 42.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 31-MAR-1991 | Ridenour, James | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 08/27/1980 |
|---|---|
| MSHA mine ID | 0401717 |
| Mine name (MSHA) | Calmat Plant |
| Current operator | Conrock Company |
| Current controller (parent) | Calmat Company |
| 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MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date.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.