| Deposit ID | 10212675 |
|---|---|
| MRDS ID | W024459 |
| MAS/MILS ID | 0060610702 |
| Record type | Site |
| Current site name | Bear River Chrome Mine |
| Alternate or previous names | Sullivan-Hemphill-Noble Mine, Sullivan Chrome Mine |
| Related records | 10077062 |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -120.78543, 39.24299 (WGS84) |
| Elevation | 1097 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Placer(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Dutch Flat(quadrangle 1:24,000 scale)
Truckee(quadrangle 1:100,000 scale)
Chico(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Bear(hydrologic unit)
Lower Sacramento(hydrologic accounting unit)
Sacramento(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Placer |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 016 N | 011 E | 19 | NENW | California |
| Commodity | Importance |
|---|---|
| Chromium Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Chromite | Unknown |
| Penninite | Unknown |
| Uvarovite | Unknown |
| Main Entrance (1) | Paleozoic marine rocks, undivided, unit 6 (Northwestern Sierra Nevada) |
|---|
| Strike | N60W | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dip | 50S | ||||||||||||||||||||||||||||
| Thickness | 0M | ||||||||||||||||||||||||||||
| Length | 0M | ||||||||||||||||||||||||||||
| Width | 6M | ||||||||||||||||||||||||||||
| Depth to top | 0M | ||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1916 |
| Year of first production | 1917 |
| District name | Dutch Flat District |
|---|
| Type of mineral rights | Patented |
|---|---|
| Type of mineral rights | Located Claim |
| Ownership category | Private |
|---|
| Type | Unknown |
|---|---|
| Owner | Cap. Gallatin-Mined In The Early Eighties |
| Home office | California |
| Year | 1976 |
| Type | Owner-Operator |
|---|---|
| Owner | D. J. Sullivan, W. F. Hemphill, And R. E. Nobel |
| Home office | California |
| Year | 1976 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060610702 | |
| USGS | Mineral Resources Data System | MRDS | W024459 | MAS references MRDS |
G.RYNEARSON,1953,CDM AND G BULL 134,PT.3,CHAP.5,P.199-204.
BRADLEY,W ET AL,1918,CAL.STATE MINING BUR BULL 76,P.163.
| Subject category | Comment text |
|---|---|
| Deposit | THE RECORDS SHOW THAT 111.2 SHORTTONS OF ORE WAS SHIPPED IN 51.4 TONS IN 1918,40 TONS IN 1919AND 40 TONS IN 1920. CAMERON REPORTED THAT NO ORE WAS SEEN IN THE PITS,BUT MUCH F REMAINED ON THE PROPERTY. THE AVERAGE GRADE OF CHROMITE IS 4 NT CR2O3 INSUFFICIENT DATA FOR MATRIX CALCULATIONS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 22-MAY-1986 | Unknown | 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.