Stevenson.] ^J-O [Oct. 7, 



iiig the top of the mesa, and its cliff is shown at a little way back from the 

 top of the bluff overhanging this gulch. 



Crossing the narrow divide to Bluff Spring park, one passes over 

 the great sandstone in descending to the park. The spring issues from 

 almost directly underneath the sandstone, No. 1 of the last section, but 

 Goal bed G is not exposed. The sandstone overlying Goal bed F caps a 

 little mound in the park, and that coal bed has been exposed there with a 

 thickness of 2 feet 6 inches. The overlying shales are not black, the car- 

 bonaceous matter having disappeared. The road leading froni Bluff 

 Springs park to the Shaw gulch passes under a bluff, immediately beyond 

 the park, where Goal beds E and F are exposed. The latter is but 1 foot 6 

 inches thick, but the former shows : 



Goal, 8" ; clay, 4"; coal, V. 



The coal is very poor. The shale above Goal bed F is brown and yellow, 

 carbonaceous matter being wholly absent. No prospecting has been done 

 in Bluff Spring park below the line of the wagon road, and Coal bed A 

 has not been recognized. 



The massive yellow sandstone overlying Goal bed H is easily followed 

 across the low divide separating Bluff Spring park trom the Shaw gulch. 

 In this short gulch, the Canon Coal Company have mined Goal bed 

 F, known as the Shaw coal. The coal has been hauled 4 miles in wagons, 

 to be shipped at RockA^ale. It underlies a thin gi'ay sandstone and the 

 shales intervening are lead-colored. The structure of the bed as shown 

 in the mine is : 



Goal 0' 7" 



Parting 



Goal 1' 5" 



Parting 



Goal 1' 4" 



The thickness in this mine varies little from 40 inches. The coal is 

 good and has been used extensively on the engines of the Atchison, 

 Topeka and Santa Fe railroad ; but the engineers think it inferior to coal 

 from bed A. 



Goal bed G is found here at 22 feet above F and is insignificant. Goal bed 

 H is very thin and but 17 feet above G. The Great sandstone forms a bold 

 cliff here and, according to Mr. Bowie's measurement, it is 75 feet thick, 

 thus showing a decided diminution in thickness southward. Goal bed I 

 rests on the sandstone and, where explored immediately north from the 

 Shaw gulch, is 22 inches thick. 



The next gulch southward is that known as Bailey's gulch. It is barely 

 half a mile from the Shaw gulch and affords a good exhibition of the 

 measures. The following section was measured there by Mr. Bowie, who 

 has kindly given me the use of his record : 



1. Blackshale 3' 



2. Goal bed Kf. 3' 



