Le Roi Prospect

Occurrence in Brewster county in Texas, United States with commodity Mercury
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10040137
MRDS ID M054807
MAS/MILS ID 480430023
Record type Site
Current site name Le Roi Prospect
Related records 10276130

Geographic coordinates

Point of reference Pit
Geographic coordinates: -103.62306, 29.30789 (WGS84)
Elevation 869
Location accuracy 500(meters)
Relative position 1 MI SW OF TERLINGUA. Along or near the base of the cliff that forms the south wall of the Long Draw graben. Coordinates are within 100 m of adit on topo on north side of Reed Plateau.

Site location context

Political divisions (FIPS codes)

Brewster(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Terlingua(quadrangle 1:24,000 scale)

Chisos Mountains(quadrangle 1:100,000 scale)

Emory Peak(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Terlingua(hydrologic unit)

Rio Grande-Amistad(hydrologic accounting unit)

Rio Grande-Amistad(hydrologic subregion)

Rio Grande(hydrologic region)

Geographic areas

Country State County
United States Texas Brewster

Comments on the location information

  • PROPERTY CONSISTS OF 8 CLAIMS IN SEC 70, BLK G-12

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Calcite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Santa Elena
    Rock description Santa Elena
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

Pit (1) Buda Limestone and Del Rio Clay, undivided

Economic information

Comments on the ore body information

  • "No ore has been found and only traces of cinnabar can be panned from the prospects" (p. 98, PP-312)

Comments on the geologic information

  • CINNABAR IN CALCITE VEIN

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Terlingua

Land status

Ownership category Private

Workings at the site

  • Type of workings Surface/Underground
    Length 10.67M
    Overall depth 15.24M
  • Type of workings Surface
    Name of workings trenches

Comments on the workings information

  • ABOUT A DOZEN SHALLOW TRENCHES, A 50 FT SHAFT, AND A 35 FT ADIT.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-09-01 Peterson, Jocelyn A. U.S. Geological Survey
Updater 1992-09-01 Long, Keith R. U.S. Geological Survey
Editor 2012-10-31 Wilson, Anna B U.S. Geological Survey merged and deleted duplicate record 10276130.
Reporter 2012-11-18 Garner U.S. Bureau of Mines MAS 0480430023 = 10276130.

Beyond USGS

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