M'CAULEYVILLE BEACHES IN MINNESOTA. 



429 



end of the hook Hes about 3 miles east-northeast of McCauleyville. It 

 consists of gravel and sand that were borne from northeast to southwest 

 by the currents and waves of Lake Agassiz and were accumulated in this 

 broad deposit as a curved cape of its shore, which, on account of the ])rom- 

 ineuce of this earliest jjortion oliserved by me, has been named tor the 

 neighboring pretty village of McCauleyville, on the Red River, opposite to 

 Fort Abercrombie. The elevation of its top is 960 to 970 feet above the 

 sea, being 5 to 10 feet or more above the general surface of till on the east, 

 while westward a flat plain of stratified clay and fine silt, 25 to 35 feet 

 below this beach, extends 3 miles to the Red River. 



Following the McCauleyville shore northeastward 8 miles from the base 

 of this hook to the Deerhorn Creek, which it crosses about Ih miles south- 

 west of Athertou station, it is found to be marked chiefly by considerable 



Fia. 20.— Profile acroso beaolies at and near Barnosville, Mii 



Horizontal scale, 2^ miles to an inch. 



erosion of the till, but not by a well-defined escarpment. At only two 

 localities, in the southwest corner of section 11, Mitchell, and again in the 

 southwest part of section 29, Atherton, short and inconspicuous Ijeacli ridges 

 occur, their crests being in each place 965 feet above the sea. 



Beyond the Deerhorn Creek the course of this shore is nearly due 

 north for the next 10 miles, lying mostly about 1 mile west of the Camp- 

 bell beach. It runs nearly through the middle of section 4, Atherton, where 

 a small beach deposit has been dug for masons' sand; and in Barnesville it 

 passes 2 miles west of the town. Fig. 20 shows a profile crossing the east- 

 ern border of Lake Agassiz from west to east through Barnesville. In the 

 southwest part of section 2, Barnesville, it forms a rather broad gravel and 

 sand ridge, rising to 966 feet above the sea, with springy and boggy ground 

 about 10 feet lower on each side. 



