| Deposit ID | 10010798 |
|---|---|
| MRDS ID | D004776 |
| Record type | Site |
| Current site name | Spokane Mine |
| Geographic coordinates: | -103.37723, 43.83996 (WGS84) |
|---|---|
| Elevation | 1388 |
| Relative position | 4.5 MILES SOUTHEAST OF KEYSTONE, SOUTH DAKOTA |
Political divisions (FIPS codes)
Custer(county)
South Dakota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Iron Mountain(quadrangle 1:24,000 scale)
Mount Rushmore(quadrangle 1:100,000 scale)
Hot Springs(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Cheyenne-Spring(hydrologic unit)
Cheyenne(hydrologic accounting unit)
Cheyenne(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Black Hills National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | South Dakota | Custer |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Black Hills | 002S | 006E | 26 | South Dakota |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Argentite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Anglesite | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Vanadinite | Gangue |
| Result | TWO CARLOADS WERE ASSAYED AT $23.00 A TON IN 1898. |
|---|
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||||||
| Rock unit name | Granite, Pegmatite | ||||||||
| Rock description | Granite, Pegmatite | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Slate |
| Rock unit name | Graphitic Schist And Slates |
| Rock description | Graphitic Schist And Slates |
| (1) | -103.37723, 43.83996 |
|---|
| Strike | E-W |
|---|---|
| Dip | 70 N |
| Thickness | 7.62M |
| Length | 220.37M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Unorganized District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Black Hills National Forest |
| Type | Owner |
|---|---|
| Owner | Iron Mountain Development Co. |
| Type of workings | Underground |
|---|---|
| Overall depth | 91.44M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D004776 |
U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
FUERSTENAU, R.K., 1954, THE GEOLOGIC STRUCTURE OF THE SPOKANE MINING AREA, B.S. THESIS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY
ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
| Subject category | Comment text |
|---|---|
| Deposit | THREE ORE SHOOTS ARE PRESENT ALONG THE FISSURE VEIN WHICH IS CONFORMABLE WITH THE ENCLOSING SCHIST, EXCEPT WHERE IT CUTS A SMALL PEGMATITE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1980 | Barari, Rachel A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.