468 THE GLACIAL LAKE AGA8SIZ. 



course is from west to east along- the verge of a nearly level expanse of 

 till reacliing to the lake, to which its drainage is tributary. Two or 3 miles 

 farther east, where the road to Stonewall and Winnii>eg crosses this beach, 

 it has a descent of 20 feet in 30 or 40 rods south from its crest, the whole 

 slope being gravel and sand, the combined sliore deposits of the Burnside 

 and Ossowa stages of Lake Agassiz. Westward the beaches of these stages 

 are separated by a width of 1 to 2 miles, the liurnside beach running 

 southwest and west through the south half of township 14, range 3. Near 

 the west side of this township it curves northward, and thence passes north 

 and north-northwest l)etween Shoal and Manitoba lakes. East of the road 

 before mentioned the course of this beach is northeastward across town- 

 ship 15, range 1 east, and township 1(5, range 2 east, to Pleasant Home 

 post-office. Numerous short beach ridges noted on the township plats 

 northwest of this beach, between it and Shoal Lake, were probably formed 

 during the Gladstone stage of Lake Agassiz where the highest parts of that 

 ai'ea rose above its level. 



Passing over the eastern Mossy portage from Lake Wiunipegosis to 

 Cedar Lake, on the Saskatchewan, Mr. Tyrrell found that the highest land 

 crossed is a gravel ridge with crest 921 feet above the sea, being 93 feet 

 above the first of these lakes. It probably is a beach belonging to a level 

 of Lake Agassi/, near 9 10 feet, the same stage that formed the Bm-nside 

 shore-line farther south. This locality is about 70 miles northeast of 

 Kettle Hill, and the continuation of the Grladstone lieach with the gradient 

 which it has from Gladstone to Kettle Hill would carry it at Mossy portage 

 35 or 40 feet above the Burnside level there. 



THE OSSOWA BEACH. 



Lake Agassiz at the time of the Ossowa beach extended into the 

 United States nearl)' (iO miles, but the only part of this shore which has 

 been recognized and exammed south of the international boundary is an 

 extent of a few miles in Pembina County, N. Dak. In sections 21, 16, 

 and 17, township 102, range 52, close south of the Tongue River, at a 

 distance of 4 miles northeast from Hamiltt)n, two or tlu'ee parallel low. 



