Galatia Channel:Effingham Channel: Revision history

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23 August 2023

22 August 2023

16 August 2023

14 July 2020

  • curprev 14:0214:02, 14 July 2020Alan.Myers talk contribs 5,752 bytes +5,752 Created page with "{{Infobox links}} ==Effingham Channel== Across most of the basin, the upward-coarsening Delafield Member underlies the Springfield Coal. However, Potter’s (1962, 1963) maps..."