The Sheep Rock Deposits is a chromium and platinum mine located in Grant county, Oregon.
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
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.
Sheep Rock Deposits MRDS details
Site Name
Primary: Sheep Rock Deposits
Secondary: Morgan
Secondary: Campbell
Secondary: Hanenkrat
Secondary: Big Bertha No. 1
Secondary: Lost Creek
Commodity
Primary: Chromium
Primary: Platinum
Location
State: Oregon
County: Grant
District: Canyon
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: Past Producer
Deposit Type: Podiform
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
Form: ORE BODY WAS WEDGE SHAPED ( 4 FT. WIDE AT TOP, 1 FT. AT DEPTH OF 15 FT. )
Form: ORE BODY WAS WEDGE SHAPED ( 4 FT. WIDE AT TOP, 1 FT. AT DEPTH OF 15 FT. )
Structure
Not available
Alterations
Not available
Rocks
Name: Dunite
Role: Host
Age Type: Host Rock
Age Young: Late Permian
Name: Dunite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian
Analytical Data
Analytical Data: 30 TO 40 % OF CHROMIC OXIDE
Analytical Data: LOW GRADE ORE
Materials
Ore: Chromite
Comments
Comment (Deposit): ORE IS SPOTTED, SHOWS DISTINCT VERTICAL LINEAR BANDING COMBINED WITH PLANAR BANDING STRIKING N 60 E.
Comment (Workings): OPEN CUT 20 FT. LONG, 10 FT. WIDE, 5 FT. DEEP.
Comment (Geology): GEOL.DESC: PLANAR BANDS FEATHER OUT LENGTHWISE, LATERAL CONTACTS ARE COMMONLY WELL DEFINED.
Comment (Deposit): RECORDS (M015021) AND (M015023) HAVE BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.
Comment (Location): ON SHEEP ROCK; EAST SIDE OF INDIAN CREEK
References
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1941 , ODGMI, BULL. 14 - B, P. 27 , 36 .
Reference (Deposit): THAYER, T. P., 1940 , CHROMITE DEPOSITS OF GRANT COUNTY, ORE. U.S.G.S., BULL. 922 - D, P. 108 .
Reference (Deposit): WESTGATE, L. G., 1920 , DEPOSITS OF CHROMITE IN EASTERN OREGON: U.S.G.S. BULL. 725 - A. P. 43 .
Oregon Gold
"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.
