REPORT OF THE CHIEF ASTRONOMER 

 SESSIONAL PAPER No. 25a 

 /20" 119° 



39 



118' 



-Diagrammatic map showing subdivision of the Columbia Mountain System 

 at the Forty -ninth Parallel. 



more, the north-south trench occupied by the Sans Poil river, Curlew lake, and 

 Curlew creek, divides the mountains south of the line into two distinct parts. 

 To the eastern part, which is that nearer the site of old Fort Colville, the name 

 'Colville mountains ' may be restricted ; while the western division, bounded 

 by the Kettle river, the Sans Poil-Curlew trench, the Columbia river, and the 

 Okanagan river, may be called the ' Sans Poil mountains.' (Figure 4.) 



