| Deposit ID | 10019346 |
|---|---|
| MRDS ID | DC09602 |
| Record type | Site |
| Current site name | Ophir Creek Placer |
| Geographic coordinates: | -112.54312, 46.63184 (WGS84) |
|---|---|
| Relative position | A TRIBUTARY OF CARPENDER CREEK THAT JOINS IT 3MI ABOVE ITS MOUTH |
Political divisions (FIPS codes)
Powell(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Ophir Creek(quadrangle 1:24,000 scale)
Elliston(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Clark Fork(hydrologic unit)
Pend Oreille(hydrologic accounting unit)
Kootenai-Pend Oreille-Spokane(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Powell |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 010N;011N;011N | 008W;008W;007W | 01,12;24,25,36;19 | Montana |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Tetrahedrite | Ore |
| Quartz | Gangue |
| Pyrite | Gangue |
| Calcite | Gangue |
| Tourmaline | Gangue |
| Garnet | Gangue |
| Magnetite | Gangue |
| Model code | 119 |
|---|---|
| USGS model code | 39a |
| Deposit model name | Placer Au-PGE |
| Mark3 model number | 54 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Unconsolidated Deposit > Gravel | ||
| |||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| Rock unit name | RYOLITE, QUARTZ MONZONITE,BUTTE QUARTZ MONZONITE (BOULDER BATHOLITH) |
| (1) | -112.54312, 46.63184 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Boulder Batholith |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | Yes |
| Discovery year | 1865 |
| Discoverer | Dave Johns And His Indian Wife |
| District name | Ophir District |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC09602 |
MBMG MEM NO 26, P.119, 127-8.
USGS BULL 842, P. 31.
USGS PP 610, P. 168.
MBMG MEM NO 26, P. 128.
| Subject category | Comment text |
|---|---|
| Deposit | MUCH OF THE GRAVEL IN THE BED OF THE CR HAS NEVER BEEN WORKED DUE TO LACK OF GRADE FOR TAILING DISPOSAL ; INFO.SRC : 1 PUB LIT |
| Deposit | PLACER DEPOSITS WERE FOUND IN TERRACE DEPOSITS. THE LIMESTONES HAVE BEEN ALTERED IN VARIOUS DEGREES BY THE BOULDER BATHOLITH. MANY PLACES THE GARNET TACTITES WERE HOSTS FOR THE LODE DEPOSITS. SOME LODES WERE DEPOSITED IN VEINS THAT WERE ON ORE NEAR THE CONTACT OF THE LIMESTONE AND THE QUARTZ MONZONITE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1974 | Unknown | U.S. Geological Survey | |
| Updater | 01-MAY-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.