252 



W. UPHAM— GLACIAL LAKES IN CANADA. 



St. Croix, formerly the course of drainage from the west part of Lake Supe- 

 rior, when that lake was held 500 feet higher than now by the barrier of 

 the receding ice-sheet ; and the Illinois river, the outlet of the glacial Lake 

 Michigan, flowing through Lake Peoria. 



Elevations along the Qu^Apjyelle Valley {Outlet of Lake Saskatchewan). 









«(-( 







W5 . 



03 



o 



." 









5S 



Locality. 



ill 



> 



^^ 







^^^ 

 -..-i^ 



o 



03 





-tJ 





o; ?,_ ri 



-u 



X! ^^ 



bJD 





"rz o ,^ 





s5 



o 





^ 



^ 



S 



w 



Elbow of the South Saskatchewan 







7-8 



12 



24-28 



58-74 



83-84 



135-144 



144-149 



1619 

 1686 

 1704 

 1685 

 1635 

 1624 

 1504 

 1503 







about 10 



about 20 



about 20 



about 15 



54 



57 



140 



Ponds on the River that Tui-ns _ _ 



110 



Height of land. _* _ _ . . 



110-140 



Sand Hill or Evebrow lake 



115-150 



Buffalo lake . _ _ _. „ 



190 



Lake _. . 



^ 185 



Fourth Fishing lake . 



270 



Third Fishing lake 



270 



Second Fishing lake 



150-153 

 154-160 



1501 

 1500 



48 

 66 



275 



First Fishing lake 



300-350 



Crooked lake 



198-203 

 218-223 



1389 

 1364 



36 

 30 



300-320 



Round laUe '. 



310 



Mouth of the Qu'Appelle 



268 



1264 





220 









Manitoba and Keeivatin. — Lake Agassiz, the largest of all the glacial lakes 

 of North America, occupying the basin of the Red river of the North and 

 Lake Winnipeg, covered the greater part of Manitoba and a considerable 

 area of eastern Saskatchewan and southwestern Keewatin. The length of 

 Lake Agassiz from south to north extends across nine degrees of latitude, 

 from its mouth at Lake Traverse on the western line of Minnesota, below 

 latitude 46°, to an undetermined northern limit on the Nelson river probably 

 north of latitude 55°. On the east Lake Agassiz covered the present sites 

 of Rainy lake and Lake of the Woods, and on the west it washed the 

 bases of Pembina, Riding and Duck mountains and the Porcupine and 

 Pasquia hills, reaching on the Assiniboine to Brandon, and on the Sas- 

 katchewan to the vicinity of Prince Albert, some forty miles west of the 

 junction of the North Saskatchewan and South Saskatchewan rivers. Its 

 area was about 110,000 square miles, or more than the combined areas of 

 the five great lakes which outflow by the St. Lawrence. At the time of the 

 formation of its highest beach, the depth of Lake Agassiz above Fargo and 

 Moorhead was nearly 200 feet; above Grand Forks and Crookston, a little 

 more than 300 feet ; above Pembina, Saint Vincent, and Emerson, on the 



