Statistics: Thickness of Bituminous-Coal and Lignite Seams at All Mines and Thickness of Overburden at Strip Mines in the United States in 1950

Context

This report is part of the collection entitled: Technical Report Archive and Image Library and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 568 times , with 29 in the last month . More information about this report can be viewed below.

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  • 568 Total Uses
  • 29 Uses Last 32 Days

Usage by Month/Year

Year January February March April May June July August September October November December Total
2017 21 16 37 26 100
2016 7 13 31 19 14 12 12 16 11 13 16 13 177
2015 9 5 9 9 9 5 6 22 8 16 16 16 130
2014 5 2 7 3 4 2 8 7 2 4 5 10 59
2013 6 9 8 7 8 6 8 6 13 6 8 9 94
2012 0 0 0 0 0 0 0 0 0 0 0 8 8

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