| Deposit ID | 10071831 |
|---|---|
| MRDS ID | W015411 |
| MAS/MILS ID | 0160490344 |
| Record type | Site |
| Current site name | Dewey Mine |
| Alternate or previous names | Evergreen and St. Patrick Veins, Dewey-Byrd Mine, Old Dewey Mines |
| Geographic coordinates: | -116.0116, 45.93207 (WGS84) |
|---|---|
| Elevation | 640 |
| Relative position | ABOUT 5 MI S OF HARPSTER |
Political divisions (FIPS codes)
Idaho(county)
Idaho(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Grangeville East(quadrangle 1:24,000 scale)
Grangeville(quadrangle 1:100,000 scale)
Grangeville(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
South Fork Clearwater(hydrologic unit)
Clearwater(hydrologic accounting unit)
Lower Snake(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Idaho | Idaho |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Boise | 030N | 004E | 18, 22 | S2SW (18) | Idaho |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Tertiary |
| Lead | Tertiary |
| Silver | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Malachite | Ore |
| Chlorite | Gangue |
| Epidote | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite | ||||||
| Rock unit name | Seven Devils Volcanics, Andesites, Greenstones | ||||||
| Rock description | Seven Devils Volcanics, Andesites, Greenstones | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| (1) | -116.0116, 45.93207 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Shattering & Brecciation |
| General form | PINCH AND SWELL |
|---|---|
| Strike | N 10 DEG E |
| Dip | 75 DEG SE |
| Width | 6.1M |
| General form | PINCH AND SWELL |
|---|---|
| Dip | 75 DEG SE |
| General form | PINCH AND SWELL |
|---|---|
| Dip | 75 DEG SE |
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1899 |
| Year of first production | 1899 |
| District name | Harpster District |
|---|
| Ownership category | Private |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Dewey Consolidated Mining And Smelting Co. |
| Type of workings | Underground |
|---|---|
| Length | 2133.6M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W015411 | |
| Idaho Geological Survey | Idaho Mines and Prospects | IMP | GR__95 | http://www.idahogeology.org/ |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0160490344 | data consolidated into this record |
Anderson, A. L., 1956, The Geology And Mineral Resources Of The Region About Orofino, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 34, 63 P
Anderson, A. L., 1956, Idaho Bureau Of Mines And Geology Pamphlet 34
| Subject category | Comment text |
|---|---|
| Deposit | 3 Or 4 Parallel Veins, Principal Veins Are The Evergreen, The Dewey, The St. Patrick |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1974 | Miller, Pat J. | U.S. Geological Survey | |
| Reporter | 13-OCT-1990 | Western Field Operations Center (WFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.