3 o6 THE WILDERNESS OF THE UPPER YUKON 



siar range, along and across the Pelly River to the Rose 

 Mountains. The color of the sheep occupying the moun- 

 tains parallel with the Pelly River is similar to that of the 

 sheep in the Sheslay River region, except that more have 

 white necks, and more have a larger proportion of white 

 hairs mixed with the gray of the back. A series of skins 

 from both regions would show a general similarity, more 

 specimens with dark necks occurring among the sheep 

 from the Sheslay River, and more with light necks among 

 those from the Pelly River. Neither series would show 

 uniform coloration, each varying between light and dark 

 within narrow limits. Dark and light sheep occur excep- 

 tionally in both districts. 



The only route of travel for sheep, between the Pelly 

 River and the heads of the MacMillan and Ross Rivers, 

 is through the mountainous region between the Pelly and 

 the MacMillan (the southward extension of the Selwyn 

 Rockies). Immediately north of Rose Mountains the 

 country is so broken that few sheep inhabit the region. 

 The mountains, mostly dome-shaped, are separated by 

 wide valleys. In the main ranges, the Selwyns, the com- 

 plex groups are more connected and rougher, and there 

 sheep are more abundant. Throughout the Selwyns, the 

 color of the sheep is extremely variable, the same bands 

 containing sheep approximating the white dalli, and the 

 dark stonei, and every degree of intermediate color, includ- 

 ing the so-called fannini. 



The topography of the country between the Selwyn 

 Rockies and the Ogilvies is not accurately known, nor are 

 exact limits assigned to each range, but sheep travel be- 



