ANTHEACITIC COAL-FIELD OF THE ROCKY MOXTNTAINS. 



563 



Fig. 2. — Sections through Exposures of Coal-seams^ Cascade Coal-field, 

 Rocky Mountains, Canada. (Scale 20 feet to 1 inch.) 



Section B. Section C. 



Section A. 



Sandstone. 



Black shales, lu ft. 



~Z^:E, Clay shales, 20 ft. 



Broken coal, 18 in. 

 -=-'^ Shales. 



Broken coal, 18 in. 



Shales. 



Mout 



1000' 



Sandstone. 

 Black shales, 7 ft. 

 Coal, 1 ft. 

 Black shales, 6 ft. 



Clay shales, 28 ft. 



Shales. 



Soft coal, 8 in. 

 Good coal, 2 ft. 4 in. 

 Slate, 1 ft. 2 in. 

 Soft coal, 1 ft. 11 in. 



Shales. 



Black;shales, 18 in. 

 Clay shales, 8 in. 

 Good coal, 18 in. 

 Soft coal, 5 in. 



=1-^3^' Clay shales and 

 ^-^^^^1 Black shales, 21 ft. 



Coal, 1 ft. 



Black shales, 4 ft. 



Sandstone, 2 ft. 

 Coal, 1 ft. 



Black shales, 

 8 ft. 6 in. 



Coal, 2 ft. 



Black shales, 5 ft. 



Coal, 2 ft. 

 Black shale, 2 ft. 



~^^^=i^^^" | Sandy shble, 8 in. 

 f4»f^Sw^i Black shale, 3 in. 

 Sandy shale, 8 in. 



Black shale, 4 ft. 

 Foft coal, 1 ft. 1 in. 

 Good coal, I ft. 5 in. 

 Slate, 11 in. 

 Good coal, 1 ft. 1 1 in. 

 Sandstone. 



Clay shales. 

 Blaok shales, 4 ft. 



Coal, 10 ft. 



Clay shales, 50 ft. 



Black shales, 4 ft 



Clay shales, 20 ft. 



I 



Coal, 5 ft. 6 in. 

 Shales, 1 ft. 

 Coal, 5 ft. 6 in. 



-:^3£H Shales. 





