CAMPBELL SHORES IN NORTH DAKOTA. 419 



the Campbell shore is a low escarpment in the general surface of till, with 

 crest at 1,018 to 1,026 feet, from which there is a Somewhat steep descent 

 of 15 to 25 feet. A few miles farther north, however, this is changed to a 

 massive beach ridge of gravel and sand, which lies about a half mile west 

 of Conway station. 



Beyond Conway, along a distance of about 35 miles of very direct 

 north-northwest course, this shore-line, passing through the west edge of 

 the town of Park River and close by the east side of the village of Moun- 

 tain, is almost uninterruptedly an eroded escarpment of till, with eastward 

 descent of 20 to 30 feet, or rarely 40 feet, within an eighth of a mile, or 

 often a less distance. At Park River the Campbell escarpment falls rather 

 abruptly from 1,035 feet to 1,015 feet above the sea; and thence a gentle 

 slope of till sinks about 15 feet lower in a half mile east to the McCauley- 

 ville beach and railway line. In the northwest corner of Dundee, 10 miles 





Fig. 17 Profile of the Campbell escarpment in section 6, Dundee. Scale, 100 feet to an inch. 



north of Park River, the escaipment falls from 1,045 to 1,015 feet, being 

 steep for the upper half, which consists of till; then it descends more 

 slowly a few feet, also in till, with frequent bowlders; and its lower thu'd 

 is a somewhat steep slope of beach saud and coarse gravel (fig. 17). 



From its foot a smoothed surface of till sinks gradually eastward, 

 having an estimated descent of 100 feet within 3 miles. In section 2, 

 Gardar, the crest of the escarpment, at 1,045 feet, bears a slight ridge of 

 beach gravel and sand, 2 to 3 feet high above the surface of till on the 

 west; but the face of the escarpment, here falling 25 feet within 30 rods to 

 the east, is till inclosing plentiful bowlders of granite and gneiss. A few 

 miles farther north, at a distance of about 1 mile south of Mountain village, 

 the steep slope falls from 1,040 to 1,000 feet, and is covered with a beach 

 deposit of gravel and sand from 1,030 to 1,020 feet, while its higher portion 

 and a broader belt forming its foot, like the lower land extending eastward, 



