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  3. Mineral Resource Data System (MRDS)

Last Chance

Occurrence in Crook county in Oregon, United States with commodity Gold
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10048430
MRDS ID MP00015
Record type Site
Current site name Last Chance

Geographic coordinates

Geographic coordinates: -120.36721, 44.39401 (WGS84)
Location accuracy 1000(meters)
Relative position 26 MI EAST OF PRINEVILLE, 8 MI NORTHEAST OF HOWARD, Estimated Near Section Corner

Site location context

Political divisions (FIPS codes)

Crook(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ochoco Butte(quadrangle 1:24,000 scale)

Prineville(quadrangle 1:100,000 scale)

Bend(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Crooked(hydrologic unit)

Deschutes(hydrologic accounting unit)

Middle Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Ochoco 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 Oregon Crook

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 013S 020E 31 NEAR SE CORNER Oregon

Commodities

Commodity Importance
Gold Primary

Alteration

  • (Local) Andesite Is Altered

Mineral occurrence model information

Model code 151
USGS model code 25d
Deposit model name Epithermal vein, Sado
Mark3 model number 28

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name John Day Formation
    Rock description John Day Formation
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -120.36721, 44.39401
ListMap

Economic information

Ore body information

  • General form VEINLETS

Comments on the geologic information

  • LITTLE INFORMATION AVAILABLE. HOST ROCKS MOST LIKELY JOHN DAY FORMATION BASED ON STATE GEOLOGIC MAP. OTHER ROCKS IN VICINITY ARE OF COLUMBIA RIVER BASALTS, A LESS LIKELY HOST

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-91 Peterson, Jocelyn A. 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