| Deposit ID | 10236804 |
|---|---|
| MAS/MILS ID | 0060550009 |
| Record type | Site |
| Current site name | Powers Mine |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -122.32996, 38.51239 (WGS84) |
| Elevation | 427 |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Napa(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Chiles Valley(quadrangle 1:24,000 scale)
Healdsburg(quadrangle 1:100,000 scale)
Santa Rosa(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
San Pablo Bay(hydrologic unit)
San Francisco Bay(hydrologic accounting unit)
San Francisco Bay(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Napa |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 008 N | 004 W | 29 | S2 | California |
| Commodity | Importance |
|---|---|
| Manganese Critical | Tertiary |
| Trench (1) | -122.32996, 38.51239 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Prospect |
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1918 |
| Type of mineral rights | Unknown |
|---|
| Type | Owner |
|---|---|
| Owner | G. E Powers |
| Home office | California |
| Year | 1974 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060550009 |
CALIF BULL 125 1943 P 146; BULL 152 1950 P 160-1
ASSAYS MANGANESE 17.8% SILICA 66.9%
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 22-MAY-1986 | Western Field Operations Center (WFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.