POST-GLACIAL LAKES IN CANADA 



343 



valleys of the Peace and Wabiskaw rivers on the twenty-sixth; 

 on the Peace, Athabaska, and Wabiskaw valleys on the twenty-fifth; 

 slightly on the Peace and Athabaska rivers on the twenty-fourth 

 base line and just faintly on the east side of the Athabaska River 

 on the twenty-second base line. 



The 1,100-foot level shows on the northern half of the broad 

 plain of Hay River on the sixth meridian; throughout the greater 



Fig. 2. — Profiles of base lines and meridians of the Dominion Topographical 

 Surveys, Department of Interior. 



part of the twenty-seventh base line; somewhat on the Peace River 

 and very pronouncedly on the Athabaska River on the twenty- 

 sixth base line; and on the Athabaska River only on the twenty- 

 fifth base line. 



The 800-foot level shows between the fourth and fifth meridians 

 on the twenty-ninth base line; and in two places on the twenty- 

 seventh base line — the valley of Athabaska River, and near the 

 fifth meridian. 



