| Deposit ID | 10098382 |
|---|---|
| MRDS ID | M045449 |
| MAS/MILS ID | 560010152 |
| Record type | Site |
| Current site name | Kentucky Derby Mine |
| Included sites | Centennial Ridge District |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -106.17944, 41.28611 (WGS84) |
| Elevation | 2835 |
| Location accuracy | 100(meters) |
| Relative position | 2 MI SOUTHWEST OF CENTENNIAL, Adit labeled on pl. 1 of McCallum (1968, PR-7). |
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 | 8 | NEAR CENTER OF N2 | Wyoming |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Primary |
| Silver | Primary |
| Platinum Critical | Secondary |
| Palladium Critical | Secondary |
| Osmium | Secondary |
| Iridium Critical | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Chrysocolla | Ore |
| Gold | Ore |
| Malachite | Ore |
| Pyrite | Ore |
| Limonite | Gangue |
| Result | AU=TR, AG=0.69 PPM, IR=TR, PD=TR, OS=TR, PT=0.11 PPM. PT=3.5 PPM IN ROCK SAMPLE (ALL VALUES CONVERTED TO PPM FROM OZ/TON) |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Tectonite | ||||
| |||||
| Main Entrance (1) | -106.17944, 41.28611 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Shear Zones |
| Type of structure | Regional |
| Structure description | Mullen Creek-Nash Fork Shear Zone |
| General form | VEINS |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Centennial Ridge District |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045449 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560010152 | = newMRDS 10229434, merged and deleted |
MCCALLUM, M.E., 1968, THE CENTENNIAL RIDGE GOLD-PLATINUM DISTRICT, ALBANY COUNTY, WYOMING: GEOLOGICAL SURVEY OF WYOMING PRELIMINARY REPORT 7, P. 9, 10.
HAUSEL, 1980, GOLD DISTRICTS OF WYOMING: GEOLOGICAL SURVEY OF WYOMING REPORT OF INVESTIGATIONS 23, P. 36.
HAUSEL, W.D., 1989, THE GEOLOGY OF WYOMING'S PRECIOUS METAL LODE AND PLACER DEPOSITS: GEOLOGICAL SURVEY OF WYOMING BULLETIN 68, P. 99.
| Subject category | Comment text |
|---|---|
| Deposit | ORE OCCURS IN SULFIDE-RICH ZONES; UNPUBLISHED MODEL NAME: NEW RAMBLER CU-AU-PGE. |
| Deposit | "The Kentucky Derby workings are situated in the shear zone along upper Middle Fork near the waterfall which marks an abrupt change in stream flow direction. A short crosscut penetrates strongly shattered and sulphide enriched, dark, dense shear zone tectonites. The minerized zone has been appreciably oxidized and the sulphide masses are characteristically coated with films of limonite and alum. The platinum group metals osmium, palladium, iridium, and platinum along with gold have been reported from these ores (see Table 1). NRRI assays of grab samples collected from the adit show the presence of copper, gold, and silver, but no platinum group metals were recognized." (McCallum, 1968, p. 10) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 1975-02-01 | Blair, Will N. | U.S. Geological Survey | |
| Updater | 1991-08-01 | Peterson, Jocelyn A. | U.S. Geological Survey | |
| Editor | 2011-08-04 | Wilson, Anna B | U.S. Geological Survey | MAS 0560010152 = newMRDS 10229434, merged and deleted. |
| Reporter | 1983-11-18 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines | MAS 0560010152 = newMRDS 10229434 |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.