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

Semanda Mining Property

Prospect in La Plata county in Colorado, United States with commodities Uranium, Vanadium
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10263997
MAS/MILS ID 0080670010
Record type Site
Current site name Semanda Mining Property

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -108.11285, 37.40751 (WGS84)

Site location context

Political divisions (FIPS codes)

Montezuma(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

La Plata(quadrangle 1:24,000 scale)

Cortez(quadrangle 1:100,000 scale)

Cortez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle San Juan(hydrologic unit)

Upper San Juan(hydrologic accounting unit)

San Juan(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

San Juan National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado La Plata

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 036 N 011 W 06 Colorado

Commodities

Commodity Importance
Uranium Tertiary
Vanadium Critical Tertiary

Materials information

Materials Type of material
Ankerite Unknown
Barite Unknown
Calcite Unknown
Copper Unknown
Galena Unknown
Gold Unknown
Pyrite Unknown
Quartz Unknown
Silver Unknown
Uraninite Unknown

Nearby scientific data

Ore Body (1) -108.11285, 37.40751
ListMap

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 SHEAR ZONE
    Shape of Orebody #2 TABULAR
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control FRACTURING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 BLEACHING
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 PYRITIZATION
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1954

Mining district

District name California District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Reference information

Bibliographic references

  • Deposit

    OWN/OP: TEXARADO OIL & URANIUM CO., L.G. STEARNS 1956

General comments

Subject category Comment text
Deposit INFORMATION FROM DMEA REPORT, DOCUMENT NO. 3798, DATED 1956. TIME OF THE REPORT THERE HAD BEEN NO PRODUCTION FROM THE CLA WHICH WERE THEN CONTROLLED BY TEXARADO OIL AND URANIUM CO., WITH A 83% INTEREST. THE NEAREST URANIUM ORE DEPOT IS AT DUR COLO., 25 MILES DISTANT. INCLUDED IN THE DMEA REPORT ARE LOC AND CLAIM MAPS. LITTLE IS KNOWN ABOUT THE ORIGINS OF THE ARE DMEA REPORT CONCLUDED A LIMITED PROGRAM MIGHT BE JUSTIFIED, GRAM MORE IN THE NATURE OF PROSPECTING A KNOWN MINERALIZED S TURE THAN OF EXPLORING AN INDICATED FAVORABLE TARGET AREA. T CLAIMS ARE IN SECS. 5 AND 6, T. 36 N., R. 11 W., N.M.P.M.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Minecom U.S. Bureau of Mines

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.