Harrison Group

The Harrison Group is a gold, silver, and copper mine located in Grant county, Oregon at an elevation of 6,499 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Harrison Group  

State:  Oregon

County:  Grant

Elevation: 6,499 Feet (1,981 Meters)

Commodity: Gold, Silver, Copper

Lat, Long: 44.6975, -118.52083

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Harrison Group

Harrison Group MRDS details

Site Name

Primary: Harrison Group
Secondary: Windsor
Secondary: Psyche and Big Johnny


Commodity

Primary: Gold
Primary: Silver
Primary: Copper
Tertiary: Zinc
Tertiary: Chromium


Location

State: Oregon
County: Grant
District: Greenhorn


Land Status

Administrative Organization: Malheur Natioal Forest


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Blue Mountain Section


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Analytical Data: HIGH GRADE ORE, VALUES IN WINDSOR VEIN VARY FROM $5 TO $10 ( 1940 ) TWO SAMPLES FROM THE PSYCHE DUMP RAN 1.40 OZ/TON AU, 5.80 OZ/TON AG AND 0.64 OZ/TON AU, 3.90 OZ/TON AG RESPECTIVELY (ALLEN, 1948)


Materials

Ore: Chalcopyrite
Ore: Pyrite
Ore: Magnetite
Ore: Hematite
Ore: Chrysocolla
Gangue: Dolomite
Gangue: Calcite
Gangue: Quartz


Comments

Comment (Location): 16 UNPATENTED CLAIMS

Comment (Workings): DEVELOPED BY A 60-FOOT SHAFT AND 4 ADITS TOTALLING 3300 FEET. NO MILL RECORD. PSYCHE SAID TO HAVE PRODUCED $90,000 IN 1905.

Comment (Geology): GEOL.DESC: ORE OCCURS ALONG FAULT ZONE AS SMALL LENSES. ALSO SOME NARROW QUARTZ VEINS AND PORPHYRY DIKES. HIGH-GRADE ORE OCCURS IN SCATTERED SEAMS AND LENSES RARELY MORE THAN 8 INCHES THICK.

Comment (Production): NO MILL RECORD. PSYCHE SAID TO HAVE PRODUCED $90,000 IN 1905.

Comment (Deposit): SMALL KIDNEYS OF CHROMITE AND MAGNETITE ARE REPORTED FROM THE WINDSOR VEIN.


References

Reference (Deposit): OREGON METAL MINES HANDBOOK, 1941, ODGMI BULL. 14-B, P.40

Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 113

Reference (Deposit): ALLEN, R.M., 1948, GEOLOGY AND MINERALIZATION OF THE MORNING MINE AND ADJACENT REGION, GRANT COUNTY, OREGON; ODGMI BULL. 39, P. 40


Oregon Gold

Where to Find Gold in Oregon

"Where to Find Gold in Oregon" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Oregon. Read more: Where to Find Gold in Oregon.