skip to content
Search
Search U.S. government technical reports digitized or harvested by
TRAIL
.
Keyword Search
Enter your search term(s):
[advanced search]
1 result returned
Browse TRAIL Inventories
(opens in new tab)
Search results
Strata interactions in multiple-seam mining--two case studies in Pennsylvania
Refine your search results
Published Year
1980-1989 (1)
Subject
Coal mines and mining--Pennsylvania (1) *
Ground control (Mining) (1)
Mine subsidences--Pennsylvania (1)
Pillaring (Mining) (1)
Author
Chekan, G. J. (1)
Galek, James A. (1) *
Matetic, Rudy J. (1)
