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

Tip Top Deposit, Sweetwater-Norcross Group

Past Producer in San Luis Obispo county in California, United States with commodity Chromium
Map
XML
JSON
KML
C
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. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10043667
MRDS ID M100489
Record type Site
Current site name Tip Top Deposit, Sweetwater-Norcross Group

Geographic coordinates

Geographic coordinates: -120.74542, 35.41886 (WGS84)
Elevation 503
Location accuracy 1000(meters)
Relative position Assumed Spot Center Sect. 12, Assumed Spot Center Sect. 12

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Atascadero(quadrangle 1:24,000 scale)

San Luis Obispo(quadrangle 1:100,000 scale)

San Luis Obispo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Coastal(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Los Padres 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 Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 029S 011E 12 California

Comments on the location information

  • DEPOSIT IS ON A FLAT TOPPED SPUR EXTENDING NW FROM THE PEAK.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Late Jurassic

Economic information

Ore body information

  • General form LENSE
    Width 0.61M

Comments on the geologic information

  • CHROMITE OCCURS IN NUMEROUS SERPENTINIZED ULTRAMAFIC BODIES THAT ARE WIDELY DISTRIBUTED IN A NW TRENDING BELT OF THE FRANCISCAN FM.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Northern San Luis Obispo Area

Land status

Ownership category National Forest

Comments on the workings information

  • WORKINGS CONSIST OF AN OPEN CUT 75 FT. LONG HEADING N 41 W, 10 TO 30 FT. WIDE AND 15 FT DEEP; A CROSSCUT TUNNEL AND OPENCUTS (1941).

Reference information

Bibliographic references

  • Deposit

    ALLEN, J.E., 1941, CDMG 37TH REPORT OF THE STATE MINERALOGIST, V. 37, NO. 1, P. 141

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-82 Oster, Karel L. (Albers, John P.) U.S. Geological Survey

Beyond USGS

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

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.