USBM B 357
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.
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Quadrangle(s):Alaska Statewide; Juneau
Gardner, E.D., and Johnson, J.F., 1932, Shaft-sinking practices and costs: U.S. Bureau of Mines Bulletin 357, 116 p.
Juneau Mining District; Mining; Mining Methods
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