| Deposit ID | 10115557 |
|---|---|
| MAS/MILS ID | 0060630781 |
| Record type | Site |
| Current site name | Seneca Dev. Co. |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -121.10495, 40.11177 (WGS84) |
| Elevation | 1390 |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Plumas(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Twain(quadrangle 1:24,000 scale)
Lake Almanor(quadrangle 1:100,000 scale)
Susanville(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
North Fork Feather(hydrologic unit)
Lower Sacramento(hydrologic accounting unit)
Sacramento(hydrologic subregion)
California(hydrologic region)
Federal lands
Plumas National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | California | Plumas |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 026 N | 008 E | 17 | C | California |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Tertiary |
| Ore Body (1) | Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada) |
|---|
| Operation type | Surface |
|---|---|
| Development status | Plant |
| Commodity type | Metallic |
| Significant | No |
| Plant type | Leach |
| Type of mineral rights | Unknown |
|---|
| Ownership category | National Forest |
|---|
| Type | Operator |
|---|---|
| Owner | Seneca Gold Mining Co. |
| ID | 404373 |
| Home office | California |
| Year | 1990 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060630781 | |
| Mine Safety and Health Administration | MSHA | MSHA | 0404373 |
MILS-WFOC PRODUCTION FILES
RANDOL MINING DIRECTORY, 1990.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 12-OCT-1990 | Iverson, Stephen R. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 04/15/1986 |
|---|---|
| MSHA mine ID | 0404373 |
| Mine name (MSHA) | Underground Seneca Properties |
| Current operator | Hilltop Mining Company Inc |
| Current controller (parent) | Anders Peter |
| Mine type | Underground (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.