| Deposit ID | 10042347 |
|---|---|
| MRDS ID | M060102 |
| Record type | Site |
| Current site name | Mouat Ni-Cu Verdegris Creek |
| Alternate or previous names | Mountain View |
| Geographic coordinates: | -109.89635, 45.37992 (WGS84) |
|---|---|
| Elevation | 1844 |
| Relative position | 44 MI FROM COLUMBUS BY ROAD. ABOUT 0.5 MI SOUTHEAST OF MOUNTAIN VIEW LAKE |
Political divisions (FIPS codes)
Stillwater(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Meyer Mountain(quadrangle 1:24,000 scale)
Red Lodge(quadrangle 1:100,000 scale)
Billings(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Stillwater(hydrologic unit)
Upper Yellowstone(hydrologic accounting unit)
Upper Yellowstone(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Custer Gallatin National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Stillwater |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 005S | 015E | 20,21,28,29 | Montana |
| Commodity | Importance |
|---|---|
| Nickel Critical | Primary |
| Copper | Primary |
| Cobalt Critical | Secondary |
| PGE Critical | Tertiary |
| Silver | Tertiary |
| Gold | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Pentlandite | Ore |
| Pyrrhotite | Ore |
| Magnetite | Gangue |
| Plagioclase | Gangue |
| Result | AVERAGE ORE: CU=0.37%, NI=0.42%. ASSAY: 1.85% CU, 0.55% NI, 291 PPB PT(+RU, RH, IR), 86 PPB PD, 67 PPB AU (CONVERTED FROM OZ/TON TO PPB). AVERAGE PGE: 12.4 PPB PT, 42.2 PPB PD, 6.5 PPB RH (MAX. 58 PPB PT, 120 PPB PD, 14 PPB RH). HIGHEST VALUES IN 5 FT SAMPLES WERE 1.07% NI AND 0.83% CU |
|---|---|
| Result | HIGHEST VALUES FOR LONGER CORES WERE 0.81% NI AND 0.60% CU FOR 55 FT |
| Model code | 1 |
|---|---|
| USGS model code | 1 |
| Deposit model name | Stillwater Ni-Cu |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Hornfels |
| (1) | -109.89635, 45.37992 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | The Stillwater Complex Is Exposed Along The Northern Margin Of The Beartooth Uplift, One Of Several Laramide Basement-Cored Ranges That Make Up The Rocky Mountain Foreland Of South-Central Montana (Foose And Others, 1961: Kulik And Schmidt, 1988) |
| General form | STRATIFORM, PODS, LENSES, SILL-LIKE BODIES |
|---|---|
| Length | 274.32M |
| Width | 457.2M |
| Depth to top | 0M |
| Development status | Prospect |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1883 |
| Discoverer | Jack Nye, Jimmy And Jonas Hedges |
| District name | In Stillwater Complex |
|---|
| Ownership category | National Forest |
|---|
| Type | Operator |
|---|---|
| Owner | Anaconda Co. |
| First year | 1977 |
| Type | Owner |
|---|---|
| Owner | M. W. Mouat |
| First year | 1949 |
| Type | In-situ | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1973 | |||||||||||||||||||||
| Total resources | 136000000mt ore | |||||||||||||||||||||
| ||||||||||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 2438.4M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M060102 |
ROBY, R.N., 1949, INVESTIGATION OF COPPER-NICKEL DEPOSITS OF THE STILLWATER COMPLEX, STILLWATER AND SWEETGRASS COUNTIES, MONT.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4431, P. 6-9.
CORNWALL, H.R., 1973, NICKEL, IN BROBST, D.A., AND PRATT, W.P., EDS., UNITED STATES MINERAL RESOURCES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 820, P. 440.
CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1223, P. 45-46, MAP P.10-11
HOWLAND, A.L., 1943-1944, INFORMATION OBTAINED BY ANNY COURY (USGS) THROUGH WRITTEN COMMUNICATION.
ZIENTEK, M.L., 1993, MINERAL RESOURCE APPRAISAL FOR LOCATABLE MINERALS: THE STILLWATER COMPLEX, IN HAMMARSTROM, J.M., ZIENTEK, M.L., AND ELLIOTT, J.E., EDS., MINERAL RESOURCE ASSESSMENT OF THE ABSAROKA-BEARTOOTH STUDY AREA, CUSTER AND GALLATIN NATIONAL FORESTS, MONTANA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 93-207, P. F1-F83.
HOWLAND, A.L., PEOPLES, J.W., AND SAMPSON, EDWARD, 1936, THE STILLWATER IGNEOUS COMPLEX AND ASSOCIATED OCCURRENCES OF NICKEL AND PLATINUM GROUP METALS: MONTANA BUREAU OF MINES AND GEOLOGY MISCELLANEOUS CONTRIBUTION 7, P. 10-11.
PAGE, N.J, 1979, STILLWATER COMPLEX, MONTANA - STRUCTURE, MINERALOGY, AND PETROLOGY OF THE BASAL ZONE WITH EMPHASIS ON THE OCCURRENCE OF SULFIDES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1038, 69 P.
1937 DIREXPL ANACONDA CO.
1940 DIREXPL
CORNWALL, 1973
| Subject category | Comment text |
|---|---|
| Deposit | 11 LARGE PODS, 24 SMALL PODS AND LENSES DISCOVERED. SIZE OF LARGEST POD: 420 FT LONG, 218 FT WIDE, 116 FT THICK. NORITE SILLS DIP 30-40W, PARALLEL TO BASE OF COMPLEX. MINERALIZED AREA ROUGHLY 1,200 FT IN DIAMETER. INDIVIDUAL MASSES MEASURE AS MUCH AS 100 BY 30 FT ON EXPOSED SURFACES. SULFIDES ARE MOST ABUNDANT IN HORNFELS; PYRRHOTITE IS MOST ABUNDANT SULFIDE. NI AND CU CONTENT IS ERRATIC AND CANNOT BE ESTIMATED BY INSPECTION. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1973 | Dohrenwend, John C. | U.S. Geological Survey | |
| Updater | 01-JAN-1975 | Shaffer, Glenn L. | U.S. Geological Survey | |
| Updater | 01-AUG-1991 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:
Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.