Absaroka Volcanic Supergroup: Thorofare Creek and Sunlight Groups

Thorofare Creek Group - Light-colored volcaniclastic strata, andesite lava flows, and dark-brown breccia; Sunlight Group - including Trout Peak Trachyandesite, Wapiti Formation (andesitic volcaniclastic rocks), Crescent Hill Basalt, and Mount Wallace Formation (felsic and mafic volcaniclastic rocks).
State Wyoming
Name Absaroka Volcanic Supergroup: Thorofare Creek and Sunlight Groups
Geologic age Eocene
Lithologic constituents
Major
Igneous > Volcanic > Mafic-volcanic > Andesite (Volcaniclastic-volcanic breccia, Flow, Pyroclastic-tuff)andesite and trachyandesite
References
NGMDB product
Counties Park - Teton