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

Pyramid Group

Past Producer in Mesa county in Colorado, United States with commodities Copper, Chromium
Map
XML
JSON
KML
B
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014263
MRDS ID D010960
Record type Site
Current site name Pyramid Group
Alternate or previous names Patented Claims: Princess Nos. 1-2, MS 17971, Pyramid Nos. 1-4, MS 17971, Derby Nos. 1-4, MS 17971, Kentucky Boy Nos. 1-3, MS 17971, Throughbred Nos. 1-4, MS 17971

Geographic coordinates

Geographic coordinates: -109.03208, 38.52582 (WGS84)
Elevation 1963
Location accuracy 100(meters)
Relative position 19.3 MILES N 56 W FROM URAVAN

Site location context

Political divisions (FIPS codes)

Mesa(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dolores Point South(quadrangle 1:24,000 scale)

Moab(quadrangle 1:100,000 scale)

Moab(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Dolores(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country State County
United States Colorado Mesa

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 049N;049N 019W;020W 07;01,12 Colorado

Comments on the location information

  • CLAIMS LIE NEAR NW END OF SINBAD VALLEY. ELEV AND LAT-LONG GIVEN ARE FOR PROBABLE TUNNEL SITE DETERMINED FROM AIRPHOTO EXAMINATION IN NW SW NW SEC. 07. ; INFO FROM LAND.ST :1975

Commodities

Commodity Importance
Copper Primary
Chromium Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Enargite Ore
Calcite Gangue

Alteration

  • (Local) Oxidation Of Cu Sulfide To Carbonate

Analytical data

Result 14 SAMPLES FROM SURFACE CUT CONTAINED 1.31 TO 8.52 % CU AND LESS THAN 0.20 % CR203.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Wingate Sandstone;Chinle Formation
    Rock description Wingate Sandstone;Chinle Formation

Nearby scientific data

(1) -109.03208, 38.52582
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Paradox Basin Fold And Fault Belt
Type of structure Local
Structure description Sinbad Valley Anticline, Sinbad Valley Graben

Controls for ore emplacement

  • Fracture Zone Cutting Favorable Sandstone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1906
Discoverer Pyramid Mining And Milling Co. (Claimant)
Year of first production 1908

Mining district

District name Sinbad District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Colorado Copper Co.
    First year 1945

Comments on the workings information

  • PYRAMID TUNNEL DRIVEN S 50 W FOR 220 FT TO FACE. SECOND EXPLORATORY TUNNEL DRIVEN N 60 W FOR 80 FT TO FACE. SEVERAL SURFACE CUTS.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MUCH OF INTERIOR OF SINBAD VALLEY CONSISTS OF DEFORMED PENNSYLVANIAN EVAPORITES, SOME IN FAULT CONTACT WITH TRIASSIC AND PERMIAN RED BEDS. IN PYRAMID TUNNEL, WEST- TO SW-DIPPING WINGATE SANDSTONE OVERLIES ALTERED CHINLE FM. CU MINERALIZATION OCCURS IN FRACTURES, WITH CONSIDERABLE DISPERSION INTO SANDSTONE. ALTHOUGH NO SOURCE FISSURE WAS EXPOSED, A VERTICAL POSTMINERAL FAULT TRENDING N 45 W DISPLACES DEPOSIT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-83 Schwochow, Stephen D. Colorado Geological Survey

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.