| Deposit ID | 10038157 |
|---|---|
| MRDS ID | M045447 |
| MAS/MILS ID | 0560010115 |
| Record type | Site |
| Current site name | Centennial Mine |
| Included sites | Centennial Ridge District |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -106.1575, 41.29472 (WGS84) |
| Elevation | 2591 |
| Location accuracy | 250(meters) |
| Relative position | SE4 of Sec. 4. Adit labeled on McCallum, pl 1. |
Political divisions (FIPS codes)
Albany(county)
Wyoming(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Centennial(quadrangle 1:24,000 scale)
Saratoga(quadrangle 1:100,000 scale)
Rawlins(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Laramie(hydrologic unit)
North Platte(hydrologic accounting unit)
North Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Medicine Bow-Routt National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Wyoming | Albany |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 015N | 078W | 04 | SE4 | Wyoming |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Platinum Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Chrysocolla | Ore |
| Gold | Ore |
| Malachite | Ore |
| Pyrite | Ore |
| Calcite | Gangue |
| Chlorite | Gangue |
| Dolomite | Gangue |
| Epidote | Gangue |
| Siderite | Gangue |
| Result | ORE REPORTEDLY AVERAGED 1.5 OZ/TON AU |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Gneiss | ||||
| |||||
| Main Entrance (1) | -106.1575, 41.29472 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Mullen Creek-Nash Fork Shear Zone |
| Type of structure | Local |
| Structure description | Shear Zones Prominent |
| General form | DISSEMINATED |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1875 |
| Year of first production | 1876 |
| Year of last production | 1877 |
| Production years | 1876 |
| District name | Centennial Ridge District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Medicine Bow National Forest |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045447 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0560010115 | = newMRDS 10302827, merged and deleted |
MCCALLUM, M.E., 1968, THE CENTENNIAL RIDGE GOLD-PLATINUM DISTRICT, ALBANY COUNTY, WYOMING: GEOLOGICAL SURVEY OF WYOMING PRELIMINARY REPORT 7, P. 10.
BEELER, H.C., 1906, MINERALS OF ALBANY COUNTY, WYOMING: LARAMIE REPUBLICAN CO. PRINTERS, P. 11
HAUSEL, W.D., 1989, THE GEOLOGY OF WYOMING'S PRECIOUS METAL LODE AND PLACER DEPOSITS: GEOLOGICAL SURVEY OF WYOMING BULLETIN 68, P. 94.
BEELER, 1906, P. 11
Hausel, W.D., 1993, Guide to the geology, mining districts, and ghost towns of the Medicine Bow Mountains and Snowy Range Scenic Byway: Geological Survey of Wyoming Public Information Circular no. 32, 53 p.
| Subject category | Comment text |
|---|---|
| Deposit | QUARTZ VEINS. VEIN ENDS AT A FAULT AND ATTEMPTS TO FIND OTHER SIDE FAILED; UNPUBLISHED MODEL NAME: NEW RAMBLER CU-AU-PGE. |
| Deposit | A GOLD-BEARING GARNET SCHIST FROM THIS PROPERTY IS IN THE SMITHSONIAN MUSEUM (PIC-32, p. 12 also gives this info, but doesn't mention the garnet) |
| Deposit | FREE GOLD IN SHEAR ZONE AND QTZ VEINS IN SCHISTS AND GNEISSES. (From deleted MAS rescord 0560010115 = newMRDS 10302827. |
| Deposit | "The Centennial Mine, the first known lode mine in the district, was opened in 1876 (Beeeler, 1906, p. 11). Several drifts and prospect pits were developed in iron stained hornblendic gneisses and schists about one mile south of the village of Centennial. Free gold was present associated with shear zones and quartz veins, and a total production of at least $90,000 in free milling gold ore was realized. Ore productioon ceased when the workings penetrated a "flat fault" which suppoedly cut off the mineralized zone." (McCallum, 1968, p. 10) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-75 | Blair, Will N. | U.S. Geological Survey | |
| Updater | 01-JUL-82 | Barari, Rachel A. | U.S. Geological Survey | |
| Updater | 01-AUG-91 | Peterson, Jocelyn A. | U.S. Geological Survey | |
| Reporter | 18-NOV-83 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines | MAS 0560010115 = newMRDS 10302827 |
| Editor | 04-AUG-11 | Wilson, Anna B | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.