| Deposit ID | 10055780 |
|---|---|
| MRDS ID | SD02532 |
| Record type | Site |
| Current site name | Elkhorn Mine |
| Alternate or previous names | Tinsley Mine |
| Geographic coordinates: | -103.51667, 43.7469 (WGS84) |
|---|---|
| Elevation | 1585 |
| Relative position | 5 MI NORTHEAST OF THE STATE SANATORIUM |
Political divisions (FIPS codes)
Custer(county)
South Dakota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Cicero Peak(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 | 003S | 005E | 34 | SW OF NW | South Dakota |
| Commodity | Importance |
|---|---|
| Feldspar | Primary |
| Mica | Primary |
| Beryllium Critical | Primary |
| Materials | Type of material |
|---|---|
| Beryl | Ore |
| Feldspar | Ore |
| Mica | Ore |
| Andalusite | Gangue |
| Cleavelandite | Gangue |
| Muscovite | Gangue |
| Sillimanite | Gangue |
| Tourmaline | Gangue |
| Triphylite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| (1) | -103.51667, 43.7469 |
|---|
| Strike | N 80 E |
|---|---|
| Dip | 60 N |
| Length | 274.32M |
| Width | 7.62M |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Year of last production | 1940 |
| District name | Custer District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Black Hills |
| Type | Owner |
|---|---|
| Owner | Carl Roseberry Of Custer, Sd |
| Type of workings | Surface |
|---|---|
| Area | 0.026HA |
| Overall depth | 9.14M |
| Overall length | 30.48M |
| Overall width | 9.14M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | SD02532 |
USBM INFO CIRC 7707, P.
SDSMT BULL 18
USGS PP 247, P. 114-118.
USBM INFO CIRC 7707, P. 103; USGS PP 247, P. 115
| Subject category | Comment text |
|---|---|
| Deposit | BERYL CRYSTALS UP TO 3 INCHES IN DIAMETER |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1982 | Barari, Rachel A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.