Mine detail: Gray Prospect

Previously called 'Windy HollowHot Spot Other Mining District N'

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Location

Lat / long:

42.53374, -119.98245

Resource(M)

Primary:	Mercury
Ore:	Cinnabar, Limonite, Pyrite
Discovery year:	1934

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1941 - 1943

Geology

Host type:	Tuff,Volcanic Breccia (Agglomerate),Rhyolite
Associated type:	Dacite
Alteration processes:	Clay Alteration, Limonitization Opalized

References

MRDS	M054987
DEP	10040282
Reference	{Deposit:: BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.}{Deposit:: MERCURY IN OREGON, 1965, USBM IC 8252}{Deposit:: FREDERICK, F., 1945, STATE OF OREGON MAP SHOWING LOCATION OF QUICKSILVER DEPOSITS: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES, SCALE 1:1,000,000}{Deposit:: BROOKS, H. C., AND RAMP, L., 1968 , GOLD AND SILVER IN OREGON: ODGMI BULL. 61 , P. 161}
Reporter	Peterson, Jocelyn A., Bradley, Robin (Walker, George W.), Gray, Jerry J.