Foley Bros.' operation of all-electric pit for Northern Pacific Railway; this work, carried on under unusual contract, is saving railroad about $700,000 per year.
Strip mining with electricity at Colstrip, Montana
Excavating Engr
Excavating Engineer ; 20 , n 8
1926
5 pages
6 Figs.
Article (Journal)
English
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Montana. The colstrip operation in Montana
Engineering Index Backfile | 1928
|Montana. The colstrip operation in Montana
Engineering Index Backfile | 1928
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