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  • File:C605-Figure-26.jpg
    |File name=C605-Figure-26.jpg |image_no=Figure 26
    (1,573 × 1,782 (285 KB)) - 13:51, 23 August 2023
  • File:C605-Figure-27.jpg
    |File name=C605-Figure-27.jpg |image_no=Figure 27
    (1,418 × 1,307 (196 KB)) - 15:59, 17 August 2023
  • File:Penn carbondale 4-76.jpg
    |Caption=Figure 4-76. Hand specimen of “blue band.” Photograph 2008 by Scott D. Elrick
    (2,401 × 1,923 (2.04 MB)) - 21:28, 4 January 2021
  • File:C605-Figure-37.jpg
    |File name=C605-Figure-37.jpg |image_no=Figure 37
    (1,535 × 1,872 (579 KB)) - 19:29, 23 August 2023
  • File:Penn carbondale 4-77.jpg
    |Caption=Figure 4-77. The “blue band” at a site where the Herrin Coal is reduced to th
    (2,401 × 2,041 (4.22 MB)) - 21:29, 4 January 2021
  • File:Penn caseyville 2-8.jpg
    Figure 2-8. Photograph of the Pounds Sandstone in Garden of the Gods State Park (S
    (2,201 × 2,002 (4.3 MB)) - 21:37, 24 November 2020

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