The Last Chance is a mercury mine located in Josephine 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.
Last Chance MRDS details
Site Name
Primary: Last Chance
Commodity
Primary: Mercury
Location
State: Oregon
County: Josephine
District: Briggs Creek
Land Status
Land ownership: National Forest
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: Siskiyou National Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1941
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Serpentine - Gneiss Contact
Alterations
Alteration Type: L
Alteration Text: Serpentine Decomposed
Rocks
Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Ore: Cinnabar
Comments
Comment (Workings): SEVERAL PROSPECT PITS, ALL CAVED
Comment (Deposit): RECORD NUMBER (M013475) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.
Comment (Commodity): GRADE IS LOW
Comment (Location): ON SOLDIER CREEK
Comment (Deposit): SHEAR ZONE IS SEVERAL FEET WIDE; ROCKS ARE SOFTENED HYDROTHERMALLY
References
Reference (Deposit): BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P., P. 96
Reference (Deposit): MERCURY IN OREGON, 1965, USBM IC 8252
Reference (Deposit): RAMP, L. AND PETERSON, N. V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: ODGMI BULL. 100, TABLE 1 NO. 245
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.
