| Deposit ID | 10116755 |
|---|---|
| MAS/MILS ID | 0060790438 |
| Record type | Site |
| Current site name | Porter Pit |
| Alternate or previous names | Alamo Rock Plant |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -120.30066, 35.04968 (WGS84) |
| Elevation | 198 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
San Luis Obispo(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Huasna Peak(quadrangle 1:24,000 scale)
San Luis Obispo(quadrangle 1:100,000 scale)
San Luis Obispo(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Cuyama(hydrologic unit)
Central California Coastal(hydrologic accounting unit)
Central California Coastal(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | San Luis Obispo |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 011 N | 033 W | 12 | California |
| Commodity | Importance |
|---|---|
| Sand and Gravel, Construction | Primary |
| Ore Body (1) | -120.30066, 35.04968 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Private |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Alamo Rock Co. |
| ID | 0404215 |
| Home office | California |
| Year | 1990 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060790438 | |
| Mine Safety and Health Administration | MSHA | MSHA | 0404215 |
CALIF. DIV, MINES AND GEOL. SPECIAL PUBLICATION 103, 1990.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-1992 | Lowe, Nathan T. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 07/15/1993 |
|---|---|
| MSHA mine ID | 0404215 |
| Mine name (MSHA) | Alamo Rock |
| Current operator | Alamo Rock Company |
| Current controller (parent) | Diani A J & Margaret M |
| 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MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date.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.