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  3. Mineral Resource Data System (MRDS)

Ophir Valley

Occurrence in San Miguel county in Colorado, United States with commodity Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10008368
MRDS ID D000461
Record type Site
Current site name Ophir Valley
Alternate or previous names Nevada Gulch, Silver Tip Lower Yellow Jacket, Chapman Gulch, New Dominion

Geographic coordinates

Geographic coordinates: -107.81731, 37.85001 (WGS84)
Relative position NEAR OPHIR COLO., SOUTH SLOPE OF OPHIR VALLEY

Site location context

Political divisions (FIPS codes)

San Miguel(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ophir(quadrangle 1:24,000 scale)

Silverton(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Miguel(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Grand Mesa, Uncompahgre and Gunnison National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado San Miguel

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 042N 009W 35,36 Colorado

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Ferrimolybdite Ore
Galena Ore
Molybdenite Ore
Molybdite Ore
Sphalerite Ore

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -107.81731, 37.85001
ListMap

Economic information

Ore body information

  • General form ELLIPTICAL CHIMNEY (NEVADA GULCH)

Comments on the geologic information

  • METAMORPHOSED SEDIMENTARY ROCKS (YELLOW JACKET, N. DOMINION).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the workings information

  • CHAPMAN IS ASSOCIATED WITH A PORPHYRITIC QTZ MONZONITE PLUG

Reference information

Bibliographic references

  • Deposit

    WORCESTER, 1919, MOLYBDENUM DEPOSITS IN COLO.: COLO. G.S. BULL. 14

  • Deposit

    VHAY, J.S., VARNES, D.J., 1943, PRELIMINARY REPT ON MOLYBDENUM PROSPECTS, OPHIR VALLEY, SAN MIGUEL COUNTY, COLO: UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-74 King, Robert U.S. Geological Survey MODEL NAME
Updater 08-JUL-93 Beougher, Dee (Spanski, Gregory T.) U.S. Geological Survey AND NUMBER FROM TOM NASH FILES
Editor 09-JUN-95 Mosier, Dan U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.