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  3. Mineral Resource Data System (MRDS)

Twilight and Grey Groups

Past Producer in Graham county in Arizona, United States with commodity Beryllium
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Land status
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10234439
MRDS ID D011800
MAS/MILS ID 0040090347
Record type Site
Current site name Twilight and Grey Groups
Alternate or previous names Gray Group, Twilight Group
Related records 10094704

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -109.98346, 32.66681 (WGS84)
Elevation 1622

Site location context

Political divisions (FIPS codes)

Graham(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Webb Peak(quadrangle 1:24,000 scale)

Safford(quadrangle 1:100,000 scale)

Silver City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Willcox Playa(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Arizona Graham

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 009 S 023 E 10 C Arizona

Commodities

Commodity Importance
Beryllium Critical Primary

Nearby scientific data

Ore Body (1) -109.98346, 32.66681
ListMap

Economic information

Economic information about the deposit and operations

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

Land status

Ownership category National Forest

Ownership information

  • Type Unknown
    Owner Edmonton,L C And Assoc
    Home office Arizona
    Year 1956

Reference information

Bibliographic references

  • Deposit

    USGS WEBB PEAK QUAD

  • Deposit

    ADMR V FILE

  • Deposit

    MINERAL AND WATER RESOURCES OF AZ ABM BULL 180 1969 P 106

  • Deposit

    MEEVES,HENRY C NONPEGMATITIC BERYLLIUM OCCURRENCES IN AZ,

  • Deposit

    COLO,N,MEX,UTAH AND 4 ADJ.STATES USBM R1 6828 1966 P 57

  • Deposit

    ADMR TWILIGHT AND GREY GROUP FILE

Reporter information

Type Date Name Affiliation Comment
Reporter 04-NOV-83 ADMR 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 Arizona resources

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