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lOt. Sandstone, cJb ye, conglomeratic. Chert 
and quartz in coarse grains, granules 
and small pebbles- Scattered polished 
pebbles and cobbles up to 0-7 foot in 
diame ter . 
10. Obscured, probably sandstone or sandy 
clays t' .re a s a hove • 
9« Sandstone, fine-grained, massive, cross- 
laminated. 
8. Obscured by float and slope wash. 
7. Sandstone, me diun -grained, hard, with 
veri-colored chert and quartz-pebble 
conglomerate in basal 2.0 to °.0 feet. 
Weathers to gray or brown ledge. 
Latter also contains some large pe boles 
and cobbles gray, unpolished chert 
and subangular clays tone fragments up 
to 0,8 foot in diameter. 
Total thickness of Lakota (rounded ) 
10-5 
15-0 
6.0 
16.0 
16.0 
rrsru 
