| Deposit ID | 10294360 |
|---|---|
| MAS/MILS ID | 0300490412 |
| Record type | Site |
| Current site name | Eldorado Sapphire Mine |
| Alternate or previous names | American Gem Corp. |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -111.74667, 46.7105 (WGS84) |
| Elevation | 1280 |
| Location accuracy | 500(meters) |
Political divisions (FIPS codes)
Lewis and Clark(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Canyon Ferry(quadrangle 1:24,000 scale)
Canyon Ferry Dam(quadrangle 1:100,000 scale)
White Sulphur Springs(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Missouri(hydrologic unit)
Upper Missouri(hydrologic accounting unit)
Missouri-Marias(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Helena-Lewis and Clark National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Lewis and Clark |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 011 N | 001 W | 17 | SESE | Montana |
| Commodity | Importance |
|---|---|
| Sapphire | Primary |
| Ore Body (1) | -111.74667, 46.7105 |
|---|
| Operation type | Placer |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Type | Owner-Operator |
|---|---|
| Owner | Eldorado Mining Inc. |
| ID | 2401478 |
| Home office | 6420 Nelson Rd, Helena, Mt 59601 |
| Year | 1982 |
| Type | Owner-Operator |
|---|---|
| Owner | American Gem Corp., Greg Dhal |
| Home office | Helena, Mt |
| Year | 1985 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300490412 | |
| Mine Safety and Health Administration | MSHA | MSHA | 2401478 |
MSHA REPORT, AUGUST 1982.
MCCULLOCH, ROBIN, 1993, MONTANA MINING DIRECTORY 1992,
MONTANA BUREAU OF MINES & GEOLOGY BULLETIN 131, P. 25.
PERSONAL COMMUNICATION, ROBIN MCCULLOCH, MONTANA BUREAU OF
MINES & GEOLOGY, 1995.
U.S. BUREAU OF MINES, 1994, DIRECTORY OF PRINCIPAL U.S.
GEMSTONE PRODUCERS IN 1993; U.S. BUREAU OF MINES MINERAL
INDUSTRY SURVEYS, P. 33.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 23-AUG-95 | Western Field Operations Center (WFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 06/03/1991 |
|---|---|
| MSHA mine ID | 2401478 |
| Mine name (MSHA) | Eldorado Sapphire Mine |
| Current operator | Eldorado Sapphire Mine |
| Current controller (parent) | Datsopoulous Milton & Gary Gallagher |
| Mine type | Surface (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.