Mine detail: Sylvanite Mine

Previously called 'Last Chance'

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Location

Lat / long: 42.46315, -123.02308

Resource(M)

Primary: Gold, Silver, Lead, Tungsten
Ore: Galena, Gold, Pyrite, Scheelite, Silver
Gangue: Chlorite, Quartz, Serpentine

Production

Operation type: Unknown
Production size: Small
Development status: Producer

Geology

Host rock:Applegate Group;Applegate Group
Host type:Argillite
Associated rock:Gold Hill Stock
Associated type:Diorite
Structure:Fault Zone

References

MRDSD001342
DEP10107661
Reference{Deposit:: BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 243, 264}{Deposit:: LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.}{Deposit:: WOLFE, H.D., AND WHITE, D.J., 1951, OREGON DEPT. GEOL. AND MINERAL INDUSTRIES G.M.I. SHORT PAPER 22.}{Deposit:: PARKS, H.M., AND SWARTLEY, A.M., 1916, OREGON BUREAU OF MINES AND GEOL., MIN. RES. OREGON, VOL. 2.}{Deposit:: 5) LEMMON, D.M., UNPUBLISHED DATA}{Deposit:: 6) OREGON METAL MINES HANDBOOK, 1943, ODGMI BULL. 14-C, VO}{Production:: REF. NO. 1 TOTAL PRODUCTION IS ESTIMATED AT $700,000 (BROOKS AND RAMP, 1968)}
ReporterMosier, Dan, Elliott, James E., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.