| Deposit ID | 10071346 |
|---|---|
| MRDS ID | W014680 |
| Record type | Site |
| Current site name | Trout Mine |
| Alternate or previous names | Pocahontas, Speckled Trout, Gem, Algonquin Group |
| Geographic coordinates: | -113.26786, 46.32933 (WGS84) |
|---|---|
| Elevation | 1829 |
| Relative position | ABOUT 2 KM EAST OF PHILIPSBURG |
Political divisions (FIPS codes)
Granite(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Philipsburg(quadrangle 1:24,000 scale)
Philipsburg(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Flint-Rock(hydrologic unit)
Pend Oreille(hydrologic accounting unit)
Kootenai-Pend Oreille-Spokane(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Granite |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 007N | 013W | 30 | Montana |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Manganese Critical | Primary |
| Lead | Secondary |
| Copper | Secondary |
| Zinc Critical | Secondary |
| Gold | Secondary |
| Arsenic Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Gold | Ore |
| Psilomelane | Ore |
| Sphalerite | Ore |
| Tennantite | Ore |
| Pyrolusite | Gangue |
| Quartz | Gangue |
| Rhodochrosite | Gangue |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Marble |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Red Lion Formation;Hasmark Formation;Silver Hill Formation;Flathead Quartzite |
| Rock description | Red Lion Formationt;Hasmark Formationt;Silver Hill Formationt;Flathead Quartzite |
| (1) | -113.26786, 46.32933 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Philipsburg Batholith |
| Type of structure | Local |
| Structure description | Philipsburg Anticline, Philipsburg Overthrust |
| General form | TABULAR, LENTICULAR, PODS |
|---|---|
| Strike | N 80 E |
| Dip | 80 S |
| Length | 1000M |
| Width | 10M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | Yes |
| Discovery year | 1868 |
| Year of first production | 1870 |
| District name | Philipsburg (Granite-Flint Creek) District |
|---|
| Type | Operator |
|---|---|
| Owner | Trout Mining Co. |
| Type | Owner |
|---|---|
| Owner | Trout Mining Co., |
| Home office | Philipsburg, Mt. |
| Type of workings | Underground |
|---|---|
| Length | 10000M |
| Overall depth | 500M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W014680 |
USBM REP INVES 4399, 9 P.
USGS BULL 922-G, P. 157-204.
USBM REP INVES 4723, 57 P.
USGS BULL 725, P. 146-174.
MBMG BULL 25, P. 18.
USGS PP 78, P. 209-10.
USGS BULL 1237, P. 15-57, PLATES.
USBM RI 4399, RI 4723
| Subject category | Comment text |
|---|---|
| Deposit | IN BRECCIATED ORE NEARLY ALL OF THE AG WAS IN THE GRAY QUARTZ. CHIEF VEIN IS POCAHONTAS, TRACED FOR MORE THAN 760 M. AG-ZN ORE CONFINED LARGELY TO THIS VEIN. IRREGULAR BODIES OF MN ORE BORDER POCAHONTAS VEIN AND SMALL VEINS TO THE N. BODIES ARE ABOUT 12 M THICK, 50 M LONG, AND 30 M WIDE. VEINS ARE UP TO 10 M WIDE. THE MN VEIN PITCH STEEPLY NE PARALLEL WITH THE DIP OF THE LIMESTONE. |
| Deposit | GEM CLAIM ONE OF FIRST LOCATED IN DISTRICT; PRODUCED 30,000 LT OF MN ORE BY 1918. POCAHONTAS, OPERATED BY PATTEN BROS. AND WESTERN ORE & MINING CO., PRODUCED SEVERAL THOUSAND TONS BY 1918. AFTER BEING IDLE FOR ABOUT 30 YEARS TROUT WAS BOUGHT AND OPENED BY WESTERN ORE ABOUT 1917. GROUP WAS PURCHASED AND COMBINED IN 1924 BY TROUT MINING DIV., AMERICAN MACHINE AND METALS CORP. THE TROUT MINING DIV. THEN SEPARATED ABOUT 1960 TO BECOME THE TROUT MINING CO. ; INFO.SRC : 1 PUB LIT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-AUG-1976 | Krohn, Douglas H. | U.S. Geological Survey | |
| Updater | 01-NOV-1980 | Wise, Kristine K. (Elliott, James E.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.