Fig. ii. Profiles of certaiu mountain raujies In Montana. Scale : 

 horizontal and vertical, i- Inch: about .idOO feet. O. mean sea level. 

 A and I'., along the international border (49th parallel) from Kintla 

 Lakes to Belly River, across (ilacier National Park and the Conti- 

 nental Divide. V. section of the Bitter Root Range on the 46th 

 parallel : from the summit to the Bitter Root River. D, Contmental 

 Divide on the 46th parallel. E, the Alisaroka Range and the Yellow- 

 stone River on the 46tli parallel. F, the Crazy Mountains on the 

 46th parallel, 



36 



