... deposits dates back to the mining boom of 1880 to 1900 in the Black Hills, when most of the deposits were prospected for tin by the ill-fated Harney Peak Tin ...
... Mineral Resources of the Rincon Study Area, Harney County, Oregon BUREAU OF MINES ... Page 2. MINERAL RESOURCES OF THE RINCON STUDY AREA , HARNEY COUNTY. OREGON ...
... Mineral Resources of the Orejana Canyon Study Area, Harney County, Oregon ... Page 2. MINERAL RESOURCES OF THE OREJANA CANYON STUDY AREA HARNEY COUNTY, OREGON ...
... metamorphic rocks, as well as pegmatite mines that produced feldspar, mica, and other commodities in intrusive rocks associated with the Harney Peak Granite. ...
... deposits dates back to the mining boom of 1880 to 1900 in the Black Hills, when most of the deposits were prospected for tin by the ill-fated Harney Peak Tin ...
... Mineral Resources of the Little Blitzen Gorge Study Area, Harney County, Oregon ... MINERAL RESOURCES OF THE LITTLE BLITZEN GORGE STUDY AREA, HARNEY COUNTY, OREGON ...
Page 1. STUDY OF PRE-CAMBRIAN ROCKS. Contribution to the Study of the Pre-Cambrian Rocks of the Harney Peak District of South Dakota. ...Harney's Peak. ...