| Deposit ID | 10166408 |
|---|---|
| MRDS ID | D002392 |
| MAS/MILS ID | 0080510199 |
| Record type | Site |
| Current site name | Keystone Mine |
| Alternate or previous names | Mt Emmons Project |
| Related records | 10009418 |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -107.03923, 38.86889 (WGS84) |
| Elevation | 2987 |
| Location accuracy | 10(meters) |
Political divisions (FIPS codes)
Gunnison(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Axtell(quadrangle 1:24,000 scale)
Paonia(quadrangle 1:100,000 scale)
Montrose(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
East-Taylor(hydrologic unit)
Gunnison(hydrologic accounting unit)
Gunnison(hydrologic subregion)
Upper Colorado(hydrologic region)
Federal lands
Grand Mesa, Uncompahgre and Gunnison National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Gunnison |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Lead | Primary |
| Zinc Critical | Primary |
| Main Entrance (1) | -107.03923, 38.86889 |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Ownership category | National Forest |
|---|
| Type | Owner |
|---|---|
| Owner | Climax Molybdenum Co., Division Of American Metal Climax Inc. (Amax) |
| ID | 503142 |
| Home office | Colorado |
| Year | 1979 |
| Type | Operator |
|---|---|
| Owner | Harrison Western Corp. |
| ID | 503142 |
| Home office | Colorado |
| Year | 1978 |
| Type | Owner-Operator |
|---|---|
| Owner | U.S. Energy Corp. |
| ID | 503142 |
| Year | 1977 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080510199 | |
| USGS | Mineral Resources Data System | MRDS | D002392 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 0503142 |
OLD KEYSTONE ENTRY BEING USED FOR ACCESS TO MT EMMONS ORE
BODY THUS ALT-NAME OF MT EMMONS.
MSHA ALSO SHOWS MID AS 0500409 ON 1977 MESA LIST.
REVISED BY MILS 3-17-80 TO REFLECT MSHA INFORMATION.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-1983 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 01/09/1979 |
|---|---|
| MSHA mine ID | 0503142 |
| Mine name (MSHA) | Mt Emmons |
| Current operator | Climax Molybdenum Company |
| Current controller (parent) | Cyprus Amax Minerals Company |
| Mine type | Underground (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.