1881.1 



519 



[Stevenson. 



Shale 



Gray sandstone 10 



Black shale 1 



Coal, divided midway by shale, 1", J 2 



Shale and gray sandstone , . . . 18 



Coal hedl 



, 1 



9. Shale 



10. 

 11. 

 13. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 



Gray sandstone 13 



Yellovp sandstone 60 



Shale 1 



Coal bedK 



Shale 1 



Gray sandstone 15 



Coal bed G 1 



Shale 1 



Gray sandstone 7 



Black shale 14 



CoalbedF 3 



Shale , ' 7 



Sandstone 4 



Shale 8 



Coal bedE 1 



Shale 38 



Coal bedD 3 



Interval 61 



Coal bedB 4 



Argillaceous shale 30 



Coal bed A 



Shale 



Argillaceous sandstone 14 



Yellow sandstone 150 



6" 

 6" 



5" 

 3" 

 3" 



6" 



6" 

 6" 



6" 



4// 

 9" 

 6" 

 6" 

 6" 

 3" 



10" 

 10" 

 6" 



The lettering of the coal beds is in accordance with the generalized sec- 

 tion. Coal bed C is not given in this section ; it is exposed at the point of 

 the bluff between Bailey and Shaw gulches at 33 feet above Coal bedB. 

 An imperfect exposure made with the hammer showed 2 feet of coal, but 

 neither the top nor the bottom of the bed was reached. 



Coal bed G varies from 2 inches to 18 inches. Coal bed F is well shown 

 in the bed of the gulch, where the structure is clearl3'the same as in Shaw 

 gulch. Coal bed E is imperfectly exposed in the stream bed ; but Coal bed 

 D is well shown in the side of the gulch where it has been prospected. 

 Coal bed B has been opened at the end of the bluff where the thickness is 

 as given. Coal bed A is utterly insignificant here, being but 10 inches in 

 Mr. Bowie's section and 14 inches where seen in the gulch by the writer. 



The great sandstone at the base of the section, is reached just east from 

 the mouth of the gulch. It has the same characteristics everywhere along 

 the east face of the field. The thickness as given by Mr. Bowie is per- 



