| Deposit ID | 10310318 |
|---|---|
| MRDS ID | M242255 |
| MAS/MILS ID | 0320110228 |
| Record type | Site |
| Current site name | Horse Canyon Mine |
| Alternate or previous names | Cortez Joint Venture, Horse Canyon pit, South Silicified pit |
| Related records | 10047015, 10310460, 10246495 |
| Geographic coordinates: | -116.56342, 40.15991 (WGS84) |
|---|---|
| Elevation | 2530 |
| Relative position | The Horse Canyon area is located about 50 km south of Beowawe, approximately two miles east of Mount Tenabo in the Cortez Mountains in Eureka County. The Horse Canyon/Cortez unified exploration area in 2004 is located approximately 35 air miles southeast of the community of Battle Mountain in both Lander and Eureka counties |
Political divisions (FIPS codes)
Eureka(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Cortez(quadrangle 1:24,000 scale)
Crescent Valley(quadrangle 1:100,000 scale)
Winnemucca(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Pine(hydrologic unit)
Humboldt(hydrologic accounting unit)
Black Rock Desert-Humboldt(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management NV)
Bureau of Land Management NV BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Nevada | Eureka |
| United States | Nevada | Lander |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 026N | 048E | 03 04 | Nevada | |
| Mount Diablo | 027N | 048E | 33 34 | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Barium-Barite Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Barite | Ore |
| Quartz | Gangue |
| Clay | Gangue |
| Jarosite | Gangue |
| Pyrite | Gangue |
| Model code | 173 |
|---|---|
| USGS model code | 26a.1 |
| Deposit model name | Sediment-hosted Au |
| Mark3 model number | 17 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale | ||
| Rock type qualifier | carbonaceous | ||
| Rock unit name | Vinini Formation | ||
| |||
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale | ||
| Rock type qualifier | siliceous | ||
| Rock unit name | Vinini Formation | ||
| |||
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale | ||
| Rock type qualifier | cherty | ||
| Rock unit name | Vinini Formation | ||
| |||
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | |||
| Rock unit name | Wenban Limestone | ||
| |||
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||
| Rock type qualifier | small rhyolite intrusives less than 1 mile away. | ||
| |||
| (1) | -116.56342, 40.15991 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Roberts Mountains Thrust; Cortez Window |
| Type of structure | Local |
| Structure description | high angle faulting; fractures; folding |
| General form | tabular to irregular |
|---|
| Operation type | Surface |
|---|---|
| Development status | Past Producer |
| Commodity type | Both |
| Deposit size | Small |
| Significant | Yes |
| Discovery year | 1976 |
| Year of first production | 1983 |
| Year of last production | 1993 |
| Production years | 1983-1993 |
| District name | Cortez District |
|---|
| Ownership category | Private |
|---|---|
| Ownership category | BLM Administrative Area |
| Area name | Elko & Battle Mountain BLM Administrative Districts |
| Type | Owner-Operator |
|---|---|
| Owner | Cortez Joint Venture: Placer Dome, Inc. |
| Year | 2004 |
| Type | Owner-Operator |
|---|---|
| Owner | Cortez Joint Venture: Kennecott Explorations |
| Year | 2004 |
Bonham, H.F., 1988, in NBMG MI-1987.
Bonham, H.F., 1986, NBMG Map 91.
Foo, S.T., and Hebert, J. P., 1987, Geology of the Horse Canyon Deposit, Eureka County, Nevada, in Johnson, J. L., ed., Guidebook for Field Trips, Bulk Mineable Precious Metal Deposits of the Western United States, Geological Society of Nevada Symposium, April 6-8, 1988, Reno, Nevada. p. 326.
BLM, Sept., 2004, Horse Canyon/Cortez Unified Exploration Project II Environmental Assessment NV063-EA04-61.
NBMG MI-82 through MI-84; MI-86 thru MI-02;
NBMG Map 91, 1st, 2nd, 3rd;
NBMG OFR 83-9;
MASMILS 0320110228;
Crescent Valley Land Status, 1979;
Amer. Mines (1989), 1989;
Amer. Mines (1990), 1990;
Amer. Mines (1991-92), 1991;
EA, 2000;
Adella Harding, Elko Daily Free Press, 11/23/02.
Bentz, J., Bonham, H., Tingley, J.V., Smith, P., 1982, Field Examination Report, 7/82.
Unpublished report by Cortez Gold Mines, 1983
NBMG Mining District File 109, Numerous Clippings. 332
McCormack, John K., 1991, written communication
| Subject category | Comment text |
|---|---|
| Deposit | Fine-grained gold is disseminated in carbonaceous shale in the upper plate of the Roberts Mountain thrust. Ore is localized by the Roberts Mountains Thrust plate contact and by north-striking high angle structures. Ore zone is characterized by jasperoid breccia. The surface expression of the deposit was a bouldery resistant rib of jasperoid trending northwest along most of area covered by drill roads prior to mining. . |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-2004 | LaPointe, D. D. | Nevada Bureau of Mines and Geology | |
| Editor | 01-SEP-2007 | Schruben, Paul G. | U.S. Geological Survey | Converted from S&A FileMaker format to Oracle. Edit checks on rocks, units, and ages with Geolex search, and other fields. |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.