3 2 4 THE WILDERNESS OF THE UPPER YUKON 



throughout the Cassiars and the Selwyn Rockies. It does 

 not occur in the Pelly Mountains or the Glenlyons. It 

 is abundant in the mountain groups between the Pelly 

 and the MacMillan and in the mountains near the South 

 Fork of the MacMillan. It prefers mountains of a sub- 

 dued type with smooth, dome-like summits free from too 

 much erosion. Its favorite ranges are quite locally dis- 

 tributed in the regions it inhabits. It keeps within a 

 definite habitat and, though restless and roaming in its 

 habits, it does not gather in large bands and migrate. 

 During the winter, however, scattered bands often gather 

 to the number of two or three hundred and range in a 

 well-defined route of travel over a limited area, usually 

 less than a hundred miles. 



A woodland type of caribou inhabits the Teslin Lake 

 country, but no specimens have been examined. Also 

 the same type inhabits locally many districts west of 

 the Lewes River and becomes abundant near the coast 

 ranges at the head of the Donjek and White Rivers. If 

 specimens of these caribou could be compared, they 

 would probably be referable to Rangifer stonei of Alaska 

 which, when sufficient material has been secured, may 

 prove to be identical with Rangifer osborni. It is my 

 belief that greater series of specimens, brought together 

 for comparison, will so resemble each other that it will 

 be difficult to separate them, and perhaps all caribou of 

 this woodland type may prove to be closely related to the 

 Barren Ground type. 



