2(> 



Pirsson — Orustal Warping in, the 



level between tlie head and foot, at times, of one or two feet 

 and this gives a disthict current through the lake, whicli at the 

 narrower constrictions becomes quite pronounced. The gen- 

 eral direction of the lake is south-southeast. While the upper 

 part of the valley occupied by the lake is more open, the 

 greater part, where the lake is narrow, is a deep trench cut in 

 the gneisses of the old upland. Thus from the shores rise 



Fig. 1. 



Drainage map of the Temagami-Temiskaming Region. 



abruptly bold rocky hills with heights ranging from 350 to 600 

 feet, which in many places pass into towering cliffs. Thus 

 the aspect of the lake is like that of a fiord, and it is in truth 

 a miniature Saguenay. At the same time, considering its nar- 

 rowness, the lake is remarkably deep. From the Opemika 

 Narrows at the point marked A on the map. Barlow found that 

 the depth gradually increased until it reached 470 feet near 

 the mouth of the Kipiwa* River. This is near the middle of 



* This name is spelled in a variety of ways ; even on the same ofl5cial map 

 more than one appears. The spelling selected seems the simplest and to 

 express the sounds as the inhabitants pronounce it ; the writer, however, 

 disclaims any attempt to lix usage. 



