| Deposit ID | 10045135 |
|---|---|
| MRDS ID | M232803 |
| Record type | Site |
| Current site name | Big Four Mine |
| Geographic coordinates: | -116.09704, 41.6824 (WGS84) |
|---|---|
| Relative position | 1 MILE NE. OF COLUMBIA RANCH |
Political divisions (FIPS codes)
Elko(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Maggie Summit(quadrangle 1:24,000 scale)
Bull Run Mountains(quadrangle 1:100,000 scale)
McDermitt(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
South Fork Owyhee(hydrologic unit)
Middle Snake-Boise(hydrologic accounting unit)
Middle Snake(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Humboldt-Toiyabe National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Nevada | Elko |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 044N | 052E | 25 | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Gold | Ore |
| Sphalerite | Ore |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -116.09704, 41.6824 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Fault Contact With Granodiorite |
| General form | TABULAR |
|---|---|
| Dip | 15 S |
| Width | 1.52M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1908 |
| Year of first production | 1908 |
| District name | Aura |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Phil Heater |
| First year | 1980 |
| Type of workings | Underground |
|---|---|
| Length | 91.44M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M232803 |
GRANGER, A.E. ET AL (1957) GEOLOGY & M INERAL RESOURCES OF ELKO CO. NEV., NEV BUR OF MINES BULL 54
EMMONS, W.H. (1910) RECONNAISSANCE OF ELKO, LANDER, & EUREKA CO, NEV. USGS BULL 408
STATE INSPECTOR OF MINES (1981) DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE IN 1980.
GRANGER, A.E., ET AL.,(1957)
| Subject category | Comment text |
|---|---|
| Deposit | REPLACEMENT VEIN & FISSURES & SHEARS |
| Deposit | LOCATED ON EAST BANK OF COLUMBIA CREEK, 1/4 MILE ABOVE COLUMBIA. THREE TUNNELS APPROXIMATELY 100 FEET LONG HAVE BEEN DRIVEN. MADE SEVERAL SHIPMENTS OF ORE IN 1908. LISTED AS ACTIVE MINE & CYANIDIZATION MILL IN 1980 EMPLOYING 3 PERSONS |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-1979 | Kirkham, Richard A. | Nevada Bureau of Mines and Geology |
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.