EXPLANATION 
Hendry Ronch member 
Groy andesite volcanic sondstone in lower port and grayish-tan vol- 
ils 
§ conic siltstone in upper port 
i 
i 
H Green and brown ond andesite volcanic sandstone to claystone in- 
ferbedded with volcanic conglomerate and with siliceous limestone 
in upper part. Includes non-volcanic light colored sandstone and son- 
dy and gritty claystone near the mountains equivalent to both the 
green ond brown and the Badwoter members 
Wind River formation 
Gray and voriegoted claystone and brown sandstone. Grades toword 
mountains into o course-grained boulder facies 
= 
Sandstone and siltstone 
Sedimentary rocks of Mesozoic and Paleozoic ages ond Precam- 
brion gneiss, granite and mstasediments in Owl Creek and Big 
Horn Mountains 
— 
Foul! 
U: upthrown side; D: downthrown side 
Shown only where Tertiary rocks ore cut 
Poleocene Lower Eocene 
*15 
Locality mentioned in text 
ad | 
Fossil vertebrotes 
4 
Fossil mollusks 
Numbers shown on mop ond referred to in text 
TERTIARY 
PRE-TERTIARY 
HOT : SPRINGS 
EMONT 
Fic. 2—Geologic map of northeastern Wind River Basin showing distribution of Tepee Trail formation. 
