USBM B 357
Title:Shaft-sinking practices and costs
Authors:Gardner, E.D. and Johnson, J.F.
Publication Date:Jan 1932
Publisher:U.S. Bureau of Mines
Ordering Info:This publication is out of print. Reproductions may be available. Download below or please see our publication sales page for more information.
Quadrangle(s):Alaska Statewide, Juneau
Keyword(s):Juneau Mining District; Mining; Mining Methods
Gardner, E.D. and Johnson, J.F., 1932, Shaft-sinking practices and costs: U.S. Bureau of Mines Bulletin 357, 116 p.
- b357.pdf (23.0 M)