i^ 



^§£f "'^''"* ^^^*^^ Highland — 'Yellowstone Mts. - Chiefly Volcanic, .jj 



Teton Ntts5^g|^? 



^^^ 



t/oyTceS Process 



A-B, Section line. C-D, Ocean divide. E-F, Line of Great Fanlt. G, Third canon. II, Grand caiion. 

 Tlie black dots indicate the position of granite IjoulUors. 



Plate XXX. — Distribution of Glacial Bowlders. 



