| Deposit ID | 10071374 |
|---|---|
| MRDS ID | W014718 |
| Record type | Site |
| Current site name | Mammoth Mine |
| Related records | 10173317 |
| Geographic coordinates: | -113.38343, 46.84239 (WGS84) |
|---|---|
| Elevation | 1820 |
| Relative position | 0.2KM W OF COLOMA |
Political divisions (FIPS codes)
Missoula(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Union Peak(quadrangle 1:24,000 scale)
Missoula East(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Blackfoot(hydrologic unit)
Pend Oreille(hydrologic accounting unit)
Kootenai-Pend Oreille-Spokane(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Missoula |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 013N | 014W | 33 | Montana |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Secondary |
| Antimony Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Gold | Ore |
| Tetrahedrite | Ore |
| Result | $20-30/TON AU |
|---|
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||||||
| Rock unit name | Garnet Stock | ||||||||
| Rock description | Garnet Stock | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Rock unit name | Hasmark Formation |
| Rock description | Hasmark Formationt |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -113.38343, 46.84239 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Bearmouth Overthrust |
| Type of structure | Local |
| Structure description | Garnet Stock |
| Strike | EAST |
|---|---|
| Dip | 30S |
| Thickness | 0.91M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1897 |
| District name | Coloma District |
|---|
| Type | Owner |
|---|---|
| Owner | Mammoth Mining Co., |
| Home office | Spokane Wash. |
| Year | 1950 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1896 - 1950 | ||||||||||||||
| Material | AG | ||||||||||||||
| Accuracy | Estimate | ||||||||||||||
| Description | Cp_Grade: ^About 2 Toz/St | ||||||||||||||
| |||||||||||||||
| Year | 1950 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1896 - 1950 | ||||||||||||||
| Material | AU | ||||||||||||||
| Accuracy | Estimate | ||||||||||||||
| Description | Cp_Grade: ^About 1 Toz/St | ||||||||||||||
| |||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 82.3M |
| Overall depth | 82.3M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W014718 |
USGS BULL 660, P. 196-98.
MBMG BULL 8, P. 11, 13, 15, 16, 26, 27.
MBMG MEM 39, P. 26-28.
MBMG MEM 31, P. 77-8.
USGS BULL 660, MBMG MEM 39, MBMG BULL 8.
| Subject category | Comment text |
|---|---|
| Deposit | THE VEIN IS JUST E OF A GRANODIORITE-LIMESTONE CONTACT BUT DOES NOT CROSS IT. ANOTHER VEIN FOLLOWING THE CONTACT STRIKES SE AND DIPS EAST. HIGH GRADE OXIDIZED ORE IS REPORTED IN UPPER LEVELS OF BOTH VEINS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1976 | Mlynarczyk, Meg S. | U.S. Geological Survey | |
| Updater | 01-APR-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.