STONEWALL AND NIVERVILLE BEACHES. 471 



above the sea, being probably 10 feet higher than the level of Lake Agassiz 

 there when the beach was accumulated. Again, on the line of the tramway 

 at the Grand Rapids of the Saskatchewan, the same beach is found by Mr. 

 Tyrrell at the elevation of 850 feet; and he states that it is also well seen 

 at Point Brabant and other places along the east side of Lake Winnipegosis, 

 and that it probably is represented by the ridge in the grove behind Mani- 

 toba House, which is situated on the west shore of Lake Manitoba, close 

 south of the Narrows. 



BEACHES OF THE NlVEBVIIiLE STAGES. 



The road on the east side of the Red River between Winnipeg and 

 Emerson crosses a beach ridge about a half mile southeast of Niverville. 

 It has a width of 15 rods, and its crest, 777 to 778 feet above the sea, is 

 raised about 4 feet above the adjoining surface of lacustrine silt on each 

 side. Beginning near Niverville station, it extends southeasterly at least a 

 mile. Another beach ridge of similar size, with its crest at 780 feet, is 

 crossed by this road a third of a mile farther south. This also runs 

 southeast, holding its ridged form a mile or more, beyond which it is less 

 distinct. Again, a few miles to the south from these, a beach ridge extends 

 along this road in a nearly due-south course across the southeast quarter of 

 section 17 and the east half of sections 8 and 5, township 7, range 4 east. 

 It rises 2 to 4 feet above the land adjoining on each side, whicli is partly 

 sloughs, with water throughovit the year, the elevation of the beach crest 

 being 782 to 784 feet. Other beach deposits at nearly the same elevation 

 occur a mile southwest of Otterburne; a few miles farther to the south in 

 the northeast part of township 5, range 3 east; and about a mile east of the 

 Red River, opposite to Morris. At the last-named locality they are exca- 

 vated for masons' sand. From the southern end of Lake Agassiz in this 

 stage, near Morris, Manitoba, its western shore extended north and north- 

 west to the ^^cinity of Starbuck, thence north and northeast to Little Stony 

 Mountain, 5 miles northwest of Winnipeg, and thence nearly due north, 

 passing between Stonewall and Stony Mountain and onward along the west 

 side of Lake Winnipeg, at a distance of a few miles from it. Gravelly and 



