368 THE GLACIAL LAKE AGASSIZ. 



lake upon the delta, so that powerful waves were not driveu ashore by 

 storms. The course of the highest shore between Treherne and Brandon, 

 belonging to the time of the second Herman beach, passes first west- 

 southwest along the foot of the Tiger Hills to the north and west side of 

 Campbell's Hill, in section 4, township 7, range 12; thence southwest and 

 south to the Cypress River, near Grange post-office, in section 18, town- 

 ship 6, vange 12; thence west-northwestward to Oak Creek and along tlie 

 south side of this creek, within a mile or less from it, nearly to its mouth; 

 and, crossing the Souris in section 31, township 7, range 16, passes thence 

 northwest to Brandon. Beyond the Cypress a belt of till, moderately undu- 

 lating or in part nearly flat, from 2 or 3 to 10 miles wide, separates this 

 lake shore from the northern liorder of the Tiger Hills and the eastern 

 and northern base of the Brandon Hills. S. IMartin's house, in the north- 

 east quarter of section 28, township 8, range 17, about 15 miles southeast 

 of Brandon, is built on a small beach ridge of sand and gravel extending 

 from southeast to northwest, only slightly below the highest stage of the 

 lake, which is marked by a moderately sloping parallel escarpment, about 

 10 feet high, eroded in till a half mile southwest of this beach. The 

 unusually smoothed surface of the till extending thence west and south 

 to the Brandon and Tiger Hills, on the area crossed by the Souris in its 

 course from Gregory's mill to the mouth of Black Creek, is probably 

 attributable to the deposition of its upper portion in a body of water held 

 between these hills and the northwardly retreating ice-sheet before this 

 area was drained to the level of Lake Agassiz by the retreat of the ice 

 from the east part of the Tiger Hills and the north end of the Pembina 

 Mountain. 



In the south part of the city of Brandon the second Herman beach, 

 marking the stage bb of the table in Chapter IX, is a well-defined ridge of 

 sand and gi-avel along a distance of about a mile. It extends from east to 

 west, passing an eighth of a mile north of the court-house, and thence close 

 along the south side of Lome avenue from First to Fourth street. Between 

 Fourth and Sixth streets it is crossed by this avenue, and thence westward 

 lies close on its north side. Its structure is shown by sections where it is 

 intersected by Tenth, Eleventh, and Twelfth streets, exposing a thickness 



