Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
72120 SE1/4 Sec 18, T7S R21E
Sandstones interbedded
w/ shs & siltst. one
coal abt 4' thick
at 72120
ss become more prominent
Toward base of ss ledges
to SW marking base of F.U.
Lignite poss F.U. ?
72
72121 Horse Valley
Horse Valley
SS ledge on N side of
drainage w/ fossil leaves