| Deposit ID | 10071361 |
|---|---|
| MRDS ID | W014702 |
| Record type | Site |
| Current site name | Gregory Mine |
| Related records | 10294585 |
| Geographic coordinates: | -112.1156, 46.3899 (WGS84) |
|---|---|
| Elevation | 1695 |
| Relative position | ABOUT 7 KM WEST OF JEFFERSON CITY, MONTANA |
Political divisions (FIPS codes)
Jefferson(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Jefferson City(quadrangle 1:24,000 scale)
Butte North(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Missouri(hydrologic unit)
Upper Missouri(hydrologic accounting unit)
Missouri-Marias(hydrologic subregion)
Missouri(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Jefferson |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 007N | 004W | 04 | Montana |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Gold | Secondary |
| Copper | Secondary |
| Zinc Critical | Secondary |
| Arsenic Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Gold | Ore |
| Sphalerite | Ore |
| Pyrite | Gangue |
| Quartz | Gangue |
| Result | ORE CONTAINED AS MUCH AS 15% ZN. ORE SHIPPED FROM 1889-1990 CONTAINED 0.5-1.0 OZ/TON AU, 20-30 OZ/TON AG AND 10-30% PB. |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||
| Rock unit name | Butte Quartz Monzonite(Boulder Batholith);Elkhorn Mountain Volcanics | ||||
| Rock description | Butte Quartz Monzonite(Boulder Batholith);Elkhorn Mountain Volcanics | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| (1) | -112.1156, 46.3899 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Boulder Batholith, South-Trending Syncline In Elkhorn Mountains Volcanics |
| Type of structure | Local |
| Structure description | North-South Trending Faults West Of Mine; Roof Pendant Of Elkhorn Mountains Volcanics |
| General form | TABULAR |
|---|---|
| Strike | N 80 W |
| Dip | 70 N |
| Width | 5M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1864 |
| Year of first production | 1867 |
| District name | Colorado (Corbin-Wickes) District |
|---|
| Type | Owner |
|---|---|
| Owner | Helena - Livingston Smelting And Refining Co. |
| Type of workings | Underground |
|---|---|
| Overall depth | 220M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W014702 |
MBMG BULL 16, P. 6, 44, 46, 50-1, 108.
USGS PP 428, P. 35, 69, 71.
USGS BULL 842, P. 245.
USGS BULL 527, P. 117.
MBMG BULL 16, P. 108. USGS PP 428, P. 71.
| Subject category | Comment text |
|---|---|
| Deposit | THE VEIN DIPS 65 N IN UPPER LEVELS AND 80 N IN THE LOWER LEVELS. THE GOES THROUGH THE VOLCANICS IN TO THE BATHOLITH. VOLCANIC ROCKS THROUGH LEVEL 618, BATHOLITHIC ROCKS FROM 521-720 LEVEL. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1976 | Krohn, Douglas H. | U.S. Geological Survey | |
| Updater | 01-JUL-1981 | Wise, Kristine K. (Elliott, James E.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.