| Deposit ID | 10213824 |
|---|---|
| MAS/MILS ID | 0060730787 |
| Record type | Site |
| Current site name | Lakeside Pit |
| Alternate or previous names | El Cajon Pit |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -116.92085, 32.87196 (WGS84) |
| Elevation | 124 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
San Diego(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
El Cajon(quadrangle 1:24,000 scale)
El Cajon(quadrangle 1:100,000 scale)
San Diego(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
San Diego(hydrologic unit)
Laguna-San Diego Coastal(hydrologic accounting unit)
Southern California Coastal(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | San Diego |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| San Bernardino | 015 S | 001 E | 18 | NWNWSW | California |
| Commodity | Importance |
|---|---|
| Sand and Gravel, Construction | Primary |
| Trench (1) | -116.92085, 32.87196 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Past Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Unknown |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Conrock Co. |
| ID | 402268 |
| Home office | P. O. Box 2950, Terminal Annex, Los Angeles, Ca 90051 |
| Year | 1981 |
| Type | Owner-Operator |
|---|---|
| Owner | C. W. Mc Grath, Inc. |
| ID | 402268 |
| Interest | 100 |
| Home office | California |
| Year | 1990 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060730787 | |
| Mine Safety and Health Administration | MSHA | MSHA | 0402268 |
CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 58, 1981,
P. 51.
CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 103, 1990,
P.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 31-MAR-1991 | Rumsey, Clayton M. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 04/10/1978 |
|---|---|
| MSHA mine ID | 0402268 |
| Mine name (MSHA) | Hubble Quarry And Mill |
| Current operator | Piazza Construction Company |
| Current controller (parent) | Davis Charles |
| 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.