Gold Mining and Milling Methods and Costs at the Vallecito Western Drift Mine, Angels Camp, Calif
Author : Don Steffa
Publisher :
Page : 20 pages
File Size : 10,82 MB
Release : 1932
Category : Gold
ISBN :
Author : Don Steffa
Publisher :
Page : 20 pages
File Size : 10,82 MB
Release : 1932
Category : Gold
ISBN :
Author :
Publisher :
Page : 844 pages
File Size : 16,74 MB
Release : 1933
Category : Mineral industries
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 842 pages
File Size : 44,93 MB
Release : 1931
Category : Digital images
ISBN :
Author :
Publisher :
Page : 890 pages
File Size : 21,99 MB
Release : 1932
Category : Mines and mineral resources
ISBN :
Author : Eugene Delos Gardner
Publisher :
Page : 100 pages
File Size : 48,84 MB
Release : 1935
Category : Dredging
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Author : Charles Freeman Jackson
Publisher :
Page : 538 pages
File Size : 14,87 MB
Release : 1939
Category : Mining engineering
ISBN :
Author :
Publisher :
Page : 538 pages
File Size : 26,66 MB
Release : 1910
Category :
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 1212 pages
File Size : 35,3 MB
Release : 1938
Category :
ISBN :
Author : Daniel Harrington
Publisher :
Page : 1206 pages
File Size : 50,65 MB
Release : 1939
Category : Coal mine accidents
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Author : California. Division of Mines
Publisher :
Page : 1184 pages
File Size : 17,26 MB
Release : 1935
Category : Geology
ISBN :