Last Chance

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

Name: Last Chance  

State:  Oregon

County:  Grant

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.


Satelite image of the Last Chance

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.


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