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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Ophir Tunnel

Past Producer in San Miguel county in Colorado, United States with commodities Copper, Gold, Lead, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Land status
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10119225
MAS/MILS ID 0081130724
Record type Site
Current site name Ophir Tunnel

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -107.82454, 37.8722 (WGS84)
Elevation 3596
Location accuracy 1000(meters)

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

Commodities

Commodity Importance
Copper Tertiary
Gold Primary
Lead Tertiary
Silver Primary
Zinc Critical Tertiary

Nearby scientific data

Ore Body (1) -107.82454, 37.8722
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Pentico, Mary Avis
    Interest 100
    Home office Colorado
    Year 1978
    First year 1973

Reference information

Bibliographic references

  • Deposit

    C B M SUMMARY MINING ACTIVITY IN COLO, ANNUAL RPT 1973

Reporter information

Type Date Name Affiliation Comment
Reporter 10-APR-1995 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

Beyond USGS

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

External references

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.