| Deposit ID | 10102032 |
|---|---|
| MRDS ID | DC11394 |
| Record type | Site |
| Current site name | Del Monte Mine |
| Alternate or previous names | Bonaparte |
| Geographic coordinates: | -112.95839, 45.1949 (WGS84) |
|---|---|
| Elevation | 2073 |
| Relative position | 3 AIR MILES NNE OF BANNACK |
Political divisions (FIPS codes)
Beaverhead(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Bannack(quadrangle 1:24,000 scale)
Dillon(quadrangle 1:100,000 scale)
Dillon(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Beaverhead(hydrologic unit)
Missouri Headwaters(hydrologic accounting unit)
Missouri Headwaters(hydrologic subregion)
Missouri(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Beaverhead |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 007S | 011W | 28 | S2 OF NW | Montana |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Gold | Primary |
| Copper | Primary |
| Lead | Primary |
| Antimony Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Cerargyrite | Ore |
| Galena | Ore |
| Polybasite | Ore |
| Pyrargyrite | Ore |
| Stibnite | Ore |
| Calcite | Gangue |
| Quartz | Gangue |
| Stibiconite | Gangue |
| Result | BONAPARTE VEIN ASSAYED 20 TO 40 OZ. AG/TON. DEL MONTE VEIN AVERAGES 60 OZ. AG/TON WITH ASSAYS AS HIGH AS 450 OZ/TON. |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| Rock unit name | Madison | ||||
| Rock description | Madison | ||||
| |||||
| (1) | -112.95839, 45.1949 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Extensive Faulting, Trending Mainly To The North And Northeast. |
| Strike | N 80 E |
|---|---|
| Dip | 70 S |
| Width | 1.83M |
| Depth to top | 0M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1865 |
| Year of first production | 1865 |
| Production years | 1890-1899 |
| District name | Blue Wing District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Sarah M. Anderson |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC11394 |
USGS BULL 574, P. 71.
SHENON, P.J., 1931, GEOL. AND ORE DEPOSITS - BANNACK/ARGENTA, MONTANA: MONT. BUREAU OF MINES AND GEOL, BULL. 6, P. 34-36
USGS MGI I-433
BERGER, B.R., 1979, GEOCHEM. RECON. OF MINING DISTRICTS-SO. PIONEER MTNS., MONT: U.S. GEOL. SUR. OPEN-FILE REPORT 79-1426.
GEACH, R.D., 1972, MINES AND MINERAL DEPOSITS, BEAVERHEAD CO., MT: MT. BUREAU OF MINES AND GEOL., BULL. 85, P 99.
MBMG BULL 85, P. 99.
1914 COMPILE WINCHELL, A.N., U.S.G.S. BULL. 574
1931 COMPILE M.B.M.G. BULL. 6
1965 GEOLMAP LOWELL, W.R., U.S.G.S. M.G.I. MAP I-433
1972 COMPILE M.B.M.G. BULL. 85
1979 RECON BERGER, B.R., U.S.G.S. OPEN-FILE 79-1426
M.B.M.G. BULL. 6; M.B.M.G. BULL. 85.
| Subject category | Comment text |
|---|---|
| Deposit | Discovery Year: 1860'S |
| Deposit | ORE WAS RICH NEAR SURFACE BUT SILVER CONTENT DECLINED NOTABLY BY 60 FOOT DEPTH. AT 80 FEET IT CHANGED TO SULPHIDE ORE, (PYRARGYRITE). ATTEMPTS TO REOPEN PROPERTY IN EARLY 1920'S WERE ABANDONED AFTER A YEARS WORK. ; INFO.SRC : 1 PUB LIT |
| Deposit | TWO VEINS IN GRANODIORITE. THE BONAPARTE IS LARGER (6-FT. WIDE) BUT LOWER GRADE THAN THE DEL MONTE (4-14 INCHES WIDE). SULPHIDE ORE APPEARS ABOUT 50-FT BELOW THE SURFACE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1974 | Unknown | U.S. Geological Survey | |
| Updater | 01-JUL-1980 | Loen, Jeffrey S. (Pearson, Robert C.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.