Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Reconnaissance East of Eagle Butte
(1) Road south of Z12, 6 miles E of Perzole,
goes through Trzil City - Elk Butte contact
about 3 miles south of Z12. Trzil City
has concretions but is barren. Lecheted
concs just above contact are barren but
probably = lower NicolleH cones. One
Nemodon found, Trzil City all the way
to Z12 apparently.
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