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Sundown Mine

Past Producer in San Diego county in California, United States with commodity Tungsten
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10008653
MRDS ID D000981
Record type Site
Current site name Sundown Mine
Related records 10262393

Geographic coordinates

Geographic coordinates: -116.46751, 32.91673 (WGS84)
Relative position 4 MILES NW OF MT. LAGUNA

Site location context

Political divisions (FIPS codes)

San Diego(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Monument Peak(quadrangle 1:24,000 scale)

El Cajon(quadrangle 1:100,000 scale)

San Diego(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cottonwood-Tijuana(hydrologic unit)

Laguna-San Diego Coastal(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Cleveland 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 California San Diego

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 014S 005E 33 California

Comments on the location information

  • NE 1/4, UTM ACC.

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Epidote Gangue
Garnet Gangue
Quartz Gangue

Analytical data

Result AVG. 1% WO3

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Economic information

Ore body information

  • Strike EAST
    Dip 65-70N
    Length 45.72M
    Width 6.1M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1941-1954 INTERMITTENTLY

Land status

Ownership category National Forest

Comments on the workings information

  • 65 FT. SHAFT INCLINED 70 DEG. NORTH WHICH IS NOW CAVED. MORE RECENT WORKINGS CONSISTS OF AN EAST-TRENDING OPEN CUT. MAX. DEPTH 15 FT., AND SHORTER CUTS AT EACH END.

Reference information

Bibliographic references

  • Deposit

    WEBER, H.F., 1963; GEOLOGY AND MINERAL RESOURCES, SAN DIEGO, CA; COUNTY REPT. 3; CA. DIV. MINES AND GEOLOGY, P. 274, 280.

  • Deposit

    LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.

  • Production

    WEBER, H.F.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Elliott, James E. U.S. Geological Survey
Updater 01-JAN-1980 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 09-JUN-1995 Mosier, Dan U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative California resources

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