1881.] OKJu [Stevenson. 



but it may be that tbey represent Coal beds C, I and L. The association^ 

 of the lowest bed suggest reference of it to led C. 



Chandler creek. Tlie canon of this stream crosses the field and aflFords 

 very fair exposures of the upper part of the section ; but erosion has been 

 active at both ends of the canon, so that the lower beds have been remov- 

 ed and for the most part they are now buried under gravel on the broad 

 elevated terrace. A boring made at the mouth of the canon, at a 

 little way east from the foot of the bluffs, begins in sandstone, No. 14 of 

 the general section, and continues to the depth of 301 feet 9 inches. The 

 record of the boring as furnished by Mr. Alex. Bowie, is as follows : 



1. Gravel 30' 6" 



2. Sandstone 40' 



3. Shale 7' 6" 



4. Sandstone ., 1' A" 



5. Shale 6' 10" 



6. Goalhed 4' 1" 



7. Hard sandstone 3' 9" 



8. Soapstone 52' 



9. Sandstone 6' 



10. Soapstone 58' 4" 



11. Sandstone. 5' 4" 



12. Shale 48' 2" 



13. Goal bed 5' 5" 



14. Soapstone 8' 9' 



15. Sandstone 2' 



16. Soapstone 1' 4" 



17. Sandstone 6' 



18. Sandstone and shale 14' 5" 



The upper bed seems without doubt to be Coal bed H, though it is much 

 thicker here than at any other locality examined. The structure as 

 shown in the boring is : 



Coal, V 3" ; clay, 11'' ; coal, V 11". 



The lower bed is usually thought to be the same with Goal bed A, the 

 bed mined on Coal creek by the Colorado Coal and Iron Company, but 

 the Interval to the upper coal is very nearly the same with that obtained 

 between Coal beds H and C on Oak creek, barely a mile away ; so that 

 the lower bed is more probably Coal bed C, the bed worked in shaft ]S"o. 2 

 of the Canon Coal Company. Its structure as shown in the boring is : 



Coal, 3' 4" ; clay, 11" ; coal, V 2". 



A number of borings have been made along Chandler creek, but the 

 records ai-e not accessible. The trough becomes deep in this caiion, and 

 at the bottom of the synclinal. Coal bed A is fulh^ 800 feet below the sur- 

 face. The walls of the canon are low and the caiaon itself is ver}^ broad, 

 especially near the line of the axis. ISTo trace of the great conglom- 

 erate of Alkali gap was observed here. 



