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Roba Brothers

Occurrence in Grant 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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10033007
MRDS ID M014857
Record type Site
Current site name Roba Brothers
Related records 10134955

Geographic coordinates

Geographic coordinates: -119.29996, 44.18457 (WGS84)

Site location context

Political divisions (FIPS codes)

Grant(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Flagtail Mountain(quadrangle 1:24,000 scale)

Dayville(quadrangle 1:100,000 scale)

Canyon City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Silvies(hydrologic unit)

Oregon Closed Basins(hydrologic accounting unit)

Oregon Closed Basins(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Malheur 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 Grant

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 016S 028E 13 E Oregon

Comments on the location information

  • E 1/2

Commodities

Commodity Importance
Gold Primary

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -119.29996, 44.18457
ListMap

Economic information

Comments on the geologic information

  • MASSIVE DARK GREY TO BROWN SANDSTONE. ; GEOL.DESC: SEAM IS FRACTURE IN SANDSTONE, WHICH HAS SUFFERED VERY LITTLE ALTERATION; SANDSTONE GRADES IN PLACES INTO A FINE-GRAINED CONGLOMERATE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name South Fork Area

Land status

Ownership category
Area name Malheur Natioal Forest

Comments on the workings information

  • TRENCH 40 FEET LONG, 5 FEET WIDE, AND 25 FEET DEEP AND A SHAFT 40 FEET DEEP. NO PRODUCTION RECORDED

Reference information

Bibliographic references

  • Deposit

    OREGON METAL MINES HANDBOOK, 1941 , ODGMI BULL. 14-B, P. 152

General comments

Subject category Comment text
Deposit SMALL GOLD FLAKES IN SEAM 1/8 IN THICK

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Lee, W. U.S. Geological Survey
Updater 01-MAR-1980 Bradley, Robin (Walker, George W.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

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

External references

Maps centered on this site