9 
The biological expedition moved out of Missoula on June rath, 
and during the next two months we lived under canvas or in 
flying camps without shelter. Our main outfit was transported 
in a large wagon which followed the route along the plains near- 
est the mountains, and short trips were made from the main 
camp up into the two regions accessible only by pack animals 
and afoot. 
G. Eastern end of Lake Placid showing outlet masked by willows. The 
trees in ike foreground are Adies grandis. (After a photograph by Professor M. J.. 
Elrod. ) 
The main route lay northward along the western foothills of 
the Mission and Kootenay Mountains, and along the eastern 
shore of Flathead Lake. Only our more important camps may 
be mentioned. A thorough exploration of the valley of Sin- 
yale-a-min lake and its outlet, Post Creek, was made during the 
middle portion of June. The author made the ascent alone of 
Sin-yale-a-min peak (9,500 feet) on June 20th finding its summit 
