File:C605-Figure-08.jpg: Difference between revisions

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{{#Set:References=Hopkins, M.E., 1968, Harrisburg (No. 5) Coal reserves of southeastern Illinois: Illinois State Geological Survey, Circular 431, 25 p., 2 pl.}}

Revision as of 14:33, 9 July 2020

Figure 8 Map from Potter (1962), showing the thickness (in feet) of sandstone between the Houchin Creek and Springfield Coals, with the Galatia channel (from Hopkins 1968) superimposed.






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