| Deposit ID | 10164389 |
|---|---|
| MAS/MILS ID | 0060570948 |
| Record type | Site |
| Current site name | Spenceville |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -121.27164, 39.13209 (WGS84) |
| Elevation | 134 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Nevada(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Smartsville(quadrangle 1:24,000 scale)
Yuba City(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)
Federal lands
ST(Federal land areas administered by ST)
| Country | State | County |
|---|---|---|
| United States | California | Nevada |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 015 N | 006 E | 26 | SE | California |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Tertiary |
| Silver | Tertiary |
| Trench (1) | -121.27164, 39.13209 |
|---|
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Type of mineral rights | Patented |
|---|
| Type of workings | Underground | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060570948 |
REF 1 CALIF.DIV.MINES, COPPER IN CALIF.,BULL.144, CALIF.DEP
RES.,1948. INCLUDES PLATES OF MINE MAPS AND REFERENCE
REF 2 LYMAN MOORE DATA FROM 1970 EVALUATION
| Subject category | Comment text |
|---|---|
| Deposit | PRELIMINARY COMMENT. AFTER 2 YEARS OF PREPRODUCTION THE MINE OPERATE FOR 5 YEARS. THE ORE WILL BE HAULED TO THE BO (ID 060570440).ALL CAPITAL COSTS FOR THE MILL OPERATI ATTRIBUTED TO BOSS PROPERTY. PLANT AND EQUIPMENT USED THIS MINE WILL LATER BE USED TO MINE THE DAIRYFARM PR (ID 060610020). MINE COSTED FROM 50% PROB ORE RESERVE REC 120 BASE YEAR 1970 USED FOR MINE COSTING (1970 DOLLAR VA MINE CAPITAL COSTS TOTAL 1,851,300 ACQ 30,000 EXPLOR 143,600 DEVEL 628,800 EQUIP 463,400 PLANT 457,900 WORK.CAP 127,600 MINE OPERATING COSTS 14.900/MT REC 151 MILL CAPITAL COST ATTRIBUTED TO BOSS PROPERTY. BOXES .0001 OR .00001 NOTE THAT THIS MILL WAS NOT COSTED. REC 140 ORE HAULED BY TRUCK TO BOSS MILL |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 04-NOV-1983 | Lewis, J.D. | 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.