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  3. Mineral Resource Data System (MRDS)

Orphan Prospect

Occurrence in Boise county in Idaho, 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. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10096201
MRDS ID W007574
Record type Site
Current site name Orphan Prospect
Related records 10168017

Geographic coordinates

Geographic coordinates: -115.76316, 43.88378 (WGS84)
Elevation 1463
Relative position 4 1/2 MI NE OF IDAHO CITY

Site location context

Political divisions (FIPS codes)

Boise(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pioneerville(quadrangle 1:24,000 scale)

Idaho City(quadrangle 1:100,000 scale)

Hailey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boise-Mores(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Boise 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 Boise

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 006N 006E 08 Idaho

Comments on the location information

  • NEAR THE MASCOT MINE

Commodities

Commodity Importance
Gold Tertiary

Materials information

Materials Type of material
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Fe Stains

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Aplite;Idaho Batholith-Quartz Monzonite
    Rock description Aplite;Idaho Batholith-Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -115.76316, 43.88378
ListMap

Economic information

Ore body information

  • General form LINEAR
    Strike N 85 DEG W
    Dip 60 DEG SW
    Thickness 4.27M

Controls for ore emplacement

  • Fracture Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Idaho City

Land status

Ownership category National Forest
Area name Boise National Forest

Workings at the site

  • Type of workings Underground
    Length 21.34M

Reference information

Bibliographic references

  • Deposit

    ANDERSON, A. L., 1947, GEOLOGY AND ORE DEPOSITS OF BOISE BASIN, IDAHO, U. S. GEOL. SUR. BULL. 944 - C, P. 235

  • Deposit

    1947 GEOLMAP ANDERSON, A. L. BULL. 944 -

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1975 Steigner, William D. U.S. Geological Survey
Updater 01-SEP-1976 Siefken, Robert R. 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