| Deposit ID | 10031607 |
|---|---|
| MRDS ID | M010699 |
| Record type | Site |
| Current site name | Samuel Springs Claims |
| Alternate or previous names | Claims: Blue Jay, Last Chance, Trout Creek |
| Geographic coordinates: | -122.28939, 38.56183 (WGS84) |
|---|---|
| Location accuracy | 1000(meters) |
| Relative position | Assumed A Spot At Center Of T.8w R.4w Sect. 10. |
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)
Lower Sacramento(hydrologic accounting unit)
Sacramento(hydrologic subregion)
California(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management CA)
Bureau of Land Management CA BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | California | Napa |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 008N | 004W | 10 | California |
| Commodity | Importance |
|---|---|
| Chromium Critical | Primary |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Serpentinite |
| (1) | -122.28939, 38.56183 |
|---|
| General form | LENSE OTHER STRINGERS |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Ownership category | Private |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M010699 |
DOW, D.H. AND THAYER, T.P., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134, PART 2, CHAPT.1, P. 24,25
| Subject category | Comment text |
|---|---|
| Deposit | MASSIVE CHROMITE A FEW INCHES THICK. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-73 | Gere, W. | U.S. Geological Survey | |
| Updater | 01-JUN-81 | Oster, Karel L. (Albers, John P.) | U.S. Geological Survey |
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.