At best, Colorado seams unusual
Journal Article
·
· Coal Age; (United States)
OSTI ID:6930174
Walden Coal Co. is mining two saucer-shaped coal deposits on the western slope of Colorado using a circular surface mining plan and no blasting. Overburden, interburden and coal are ripped with dozers, and the overburden is removed with scraper-loaders. The productivity level is 42-tons-per manshift.
- OSTI ID:
- 6930174
- Journal Information:
- Coal Age; (United States), Journal Name: Coal Age; (United States) Vol. 88:11; ISSN COLAA
- Country of Publication:
- United States
- Language:
- English
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