Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
3.
Railroad cut showing top Dakota ss. It
consists of thin beds ss alternating with
beds of shale. Indication of shaling out of
top sandstone to N.
AIN-50-41
SM2H?
N 13°W, 45°W, light colored shales
with bentonites and some silty
layers with fine fregus. May be
in Upper Benton, may be Apishapa
Contact with dk sh at end of
pit - All is in old mine entry
where cliff collapsed.
64.