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 : 45,95 MB
Release : 1932
Category : Gold
ISBN :
Author : Don Steffa
Publisher :
Page : 20 pages
File Size : 45,95 MB
Release : 1932
Category : Gold
ISBN :
Author :
Publisher :
Page : 844 pages
File Size : 31,39 MB
Release : 1933
Category : Mineral industries
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 842 pages
File Size : 21,91 MB
Release : 1931
Category : Digital images
ISBN :
Author :
Publisher :
Page : 890 pages
File Size : 44,11 MB
Release : 1932
Category : Mines and mineral resources
ISBN :
Author : Eugene Delos Gardner
Publisher :
Page : 100 pages
File Size : 21,37 MB
Release : 1935
Category : Dredging
ISBN :
Author : Charles Freeman Jackson
Publisher :
Page : 538 pages
File Size : 32,83 MB
Release : 1939
Category : Mining engineering
ISBN :
Author :
Publisher :
Page : 538 pages
File Size : 10,9 MB
Release : 1910
Category :
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 1212 pages
File Size : 29,8 MB
Release : 1938
Category :
ISBN :
Author : Daniel Harrington
Publisher :
Page : 1206 pages
File Size : 48,15 MB
Release : 1939
Category : Coal mine accidents
ISBN :
Author : California. Division of Mines
Publisher :
Page : 1184 pages
File Size : 14,81 MB
Release : 1935
Category : Geology
ISBN :