| Deposit ID | 10042801 |
|---|---|
| MRDS ID | M060837 |
| Record type | Site |
| Current site name | Dacotah Mine |
| Related records | 10293946 |
| Geographic coordinates: | -110.72417, 46.94547 (WGS84) |
|---|---|
| Elevation | 2057 |
| Relative position | 1 MILE NE OF NEIHART |
Political divisions (FIPS codes)
Cascade(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Neihart(quadrangle 1:24,000 scale)
White Sulphur Springs(quadrangle 1:100,000 scale)
White Sulphur Springs(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Belt(hydrologic unit)
Upper Missouri(hydrologic accounting unit)
Missouri-Marias(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Helena-Lewis and Clark National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Cascade |
| Commodity | Importance |
|---|---|
| Lead | Primary |
| Zinc Critical | Primary |
| Silver | Primary |
| Gold | Secondary |
| Copper | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Pyrite | Gangue |
| Quartz | Gangue |
| Result | 3.5 OZ/TON AG., 6.5% PB, 10% ZN TRACE AU |
|---|
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||||||
| Rock unit name | Pinto Diorite-Porphyry, Amphibolite | ||||||||
| Rock description | Pinto Diorite-Porphyry, Amphibolite | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Gneiss |
| Rock unit name | Gneiss, Schist |
| Rock description | Gneiss, Schist |
| (1) | -110.72417, 46.94547 |
|---|
| General form | TABULAR |
|---|---|
| Plunge | 35 |
| Plunge direction | NE |
| Thickness | 4.57M |
| Length | 228.6M |
| Depth to top | 0M |
| Depth to bottom | 207.26M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1883 |
| Year of first production | 1891 |
| District name | Neihart Mining District |
|---|
| Type | Owner |
|---|---|
| Owner | Clarke, Frances |
| Type | Owner |
|---|---|
| Owner | Bennett, Josephine |
| Type | Operator |
|---|---|
| Owner | Bennett, Carroll |
| Type of workings | Unknown |
|---|---|
| Length | 1066.8M |
| Overall depth | 213.36M |
| Overall length | 243.84M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M060837 |
ROBERTSON, A.F., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS) CASCADE COUNTY, MONTANA: U.S. BUREAU OF MINES INFO. CIRC. 7589, P. 33-34
WEED, W.H., 1900, GEOLOGY OF THE LITTLE BELT MOUNTAINS, MONT: USGS 20TH ANN. RPT. PT. 3 P. 432-433
KEEFER, W.R., 1972, GEOLOGIC MAP OF THE WEST HALF OF THE NEIHART 15-MINUTE QUADRANGLE, CENTRAL MONTANA: USGS, MISC. GEOL. INV. MAP I-726
U.S. BUREAU OF MINES INFO. CIRC. 7589
DMEA FILES
| Subject category | Comment text |
|---|---|
| Deposit | VEIN FOLLOWS A WELL-DEFINED FISSURE IN LIGHT-COLORED GNEISS BUT IT TIGHTENS AND NARROWS WHERE IT ENTERS PINTO DIORITE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1974 | Puffett, Willard P. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.