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Griffith's Royal Purple Obsidian Mines.

Occurrence in Modoc county in California, United States with commodities Gemstone, Stone
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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. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10031399
MRDS ID M010157
Record type Site
Current site name Griffith's Royal Purple Obsidian Mines.
Related records 10188247

Geographic coordinates

Geographic coordinates: -120.29549, 41.83542 (WGS84)
Relative position SE COR - ACROSS ROAD FROM OPEN PIT MINE WORKING AND A SHORT DISTANCE NE OF THE USFS CAMP.

Site location context

Political divisions (FIPS codes)

Modoc(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sugar Hill(quadrangle 1:24,000 scale)

Cedarville(quadrangle 1:100,000 scale)

Alturas(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Goose Lake(hydrologic unit)

Upper Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Modoc 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 Modoc

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 046N 014E 12 California

Commodities

Commodity Importance
Gemstone Primary
Stone Primary

Nearby scientific data

(1) -120.29549, 41.83542
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: BRIGHT BLUE AND GREEN, AS WELL AS EXCEPTIONALLY GOOD RAINBOW OBSIDIAN - ALL GEM QUALITY MATERIAL REPORTED (BY OWNER)

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Land status

Ownership category National Forest

Reference information

Bibliographic references

  • Deposit

    GEMS & MINERALS, APRIL 1966, P.23

General comments

Subject category Comment text
Deposit SAID TO BE EASY DIGGING. OWNER CHARGES $3.00 FEE FOR DIGGING AND 10? A POUND FOR ALL MATERIAL OVER 30 LB. MINES OPEN FROM APR. 20 TO OCT. 15

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-DEC-1994 Li, Zhiping (Peters, S.) 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.