File:Penn carbondale 4-39.jpg
Figure 4-39. Drawing showing the Kerton Creek Coal with middle clastic layer, which may be the division between the Wheeler and Bevier Coals. From Searight (unpublished manuscript, 1925-1927, figure 22).
Click on a date/time to view the file as it appeared at that time.
|current||17:40, 23 December 2020||2,459 × 1,361 (504 KB)||IlLex|
- You cannot overwrite this file.