Umatilla Prospect

Prospect in Idaho county in Idaho, United States with commodity Gold
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10096357
MRDS ID W015135
MAS/MILS ID 0160490117
Record type Site
Current site name Umatilla Prospect

Geographic coordinates

Geographic coordinates: -115.57538, 45.70687 (WGS84)
Elevation 1676
Relative position 3 MI W OF OROGRANDE

Site location context

Political divisions (FIPS codes)

Idaho(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Orogrande(quadrangle 1:24,000 scale)

Elk City(quadrangle 1:100,000 scale)

Elk City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Clearwater(hydrologic unit)

Clearwater(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Nez Perce-Clearwater 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 Idaho Idaho

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 027N 007E 03 Idaho

Comments on the location information

  • Original coordinates for line#1 were: lat/long NAD27 45-42-26N 115-34-36W (45.70722 -115.57667); UTM N5062300 E610800 Z11N; PLSS line# 1: Meridian- Boise, TWNSHP 027N, RNG 007E, Sect 03, Sect_fract <blank>.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Gouge

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Idaho Batholith-Quartz Monzonite
    Rock description Idaho Batholith-Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Quartzite (Xenoliths)

Nearby scientific data

(1) -115.57538, 45.70687

Economic information

Geologic structures

Type of structure Local
Structure description Faults Strike N 50 Deg W, Dip 75 To 80 Deg Ne; Slickensides

Ore body information

  • General form LENS
    Strike N 20 DEG W
    Dip 80 DEG NE
    Width 1.83M

Controls for ore emplacement

  • Contact Zone

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Orogrande District

Land status

Ownership category National Forest
Area name Nez Perce National Forest

Workings at the site

  • Type of workings Surface/Underground
    Length 609.6M

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1974 Miller, Pat J. U.S. Geological Survey
Reporter 13-MAR-1995 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

External references