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Red Canyon section 
Thickness in feet. 
Fall River formation 
Contact covered 
Lakota formation 
16. Covered probably maroon to gray 
silty claystone. 23.0’ 
15. Claystone, silty to nonsilty, brown- 
ish gray. 17.0' 
14. Sandstone, very fine-grained to silty, 
massive at base to tabular at top, white 
to pink with orange -red specks. Grades 
laterally to yellow and light gray silt- 
stone . 12.5* 
13. Siltstone, maroon, variegated with 
gray and yellow. 25. O' 
12. Sandstone, fine-grained, massive, 
white to pink. 23. O' 
11. Covered slope. Probably on greenish 
to maroon siltstone and claystone. 11.0' 
10. Sandstone, light gray to white with inter- 
beds of green siltstone. Sandstone in 
beds up to 2 feet thick, weathers pinkish 
yellowish brown with variegated stain. 10.5' 
