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Abandoned Mined Lands Survey Demonstration: Indiana and Cambria Counties, Pennsylvania. Appendix D--deep Mine Tabulations.
Mentz JW; Gorton WT; Yuill CB; Ahnell G
For Reference Only At Bureau Libraries :465 pages
Volume 3 of this eight-volume report supplements volumes 1-2, 4 and 6-7. Appendix d gives an explanation of the underground mine opening classification system, mine opening classes, and sealing cost data in Indiana and Cambria Counties, Pennsylvania.
CP; Final Contract Report;
For Reference Only At Bureau Libraries
Skelly and Loy
Page last reviewed: December 3, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division