The Last Chance is a nickel, chromium, and platinum mine located in Grant county, Oregon at an elevation of 5,699 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
Elevation: 5,699 Feet (1,737 Meters)
Commodity: Nickel, Chromium, Platinum
Lat, Long: 44.34111, -118.73333
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.
Last Chance MRDS details
Site Name
Primary: Last Chance
Secondary: Province Lode Chrome
Secondary: Blue Chrome
Commodity
Primary: Nickel
Primary: Chromium
Primary: Platinum
Location
State: Oregon
County: Grant
District: Canyon City District
Land Status
Land ownership: National Wilderness
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Malheur Natioal Forest
Holdings
Not available
Workings
Type: Surface
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1918
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Blue Mountain Section
Mineral Deposit Model
Model Name: Podiform chromite (minor)
Orebody
Form: LENS
Structure
Not available
Alterations
Not available
Rocks
Name: Pyroxenite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian
Name: Pyroxenite
Role: Host
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Analytical Data: 0.25% NI
Analytical Data: 33% CR
Analytical Data: STOCKPILE SAMPLE ASSAYED 0.02 OZ/TON (700 PPB) PT
Materials
Ore: Chromite
Gangue: Serpentine
Comments
Comment (Location): IN STRAWBERRY MOUNTAIN WILDERNESS. LOCATION GIVEN IS ON NORTHEAST SLOPE OF SHEEP ROCK. PART OF LIBERTY CHROME
Comment (Development): RELOCATION OF LIBERTY CHROME AS PROVINCE LODE CHROME GROUP IN 1939; RELOCATED AS LAST CHANCE IN 1956
Comment (Commodity): SEE RECORD M025546 FOR MORE ASSAYS
Comment (Deposit): SEE ALSO: MRDS M046808, M025546.
Comment (Deposit): ORE ZONE HAS 6 IN. WIDE BANDS OF DISSEMINATED CHROMITE IN SERPENTINIZED PYROXENITE
Comment (Workings): TRENCH ON 10-FT-WIDE CHROMITE-BEARING ZONE
References
Reference (Deposit): THAYER, T.P., 1940, CHROMITE DEPOSITS OF GRANT COUNTY, OREGON: U.S. GEOLOGICAL SURVEY BULLETIN 922-D, P. 108-109.
Reference (Deposit): STOTELMEYER, R.B., 1977, ECONOMIC APPRAISAL OF THE STRAWBERRY MOUNTAIN WILDERNESS AND ADJACENT AREAS, GRANT COUNTY, OREGON, IN MINERAL RESOURCES OF THE STRAWBERRY MOUNTAIN WILDERNESS AND ADJACENT AREAS, GRANT COUNTY, OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 77-420, P. 91-93, 113.
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.
