144 THE GLACIAL LAKE AGASSIZ. 



mile wide, ri;ns northwestward tlirougli the southwest quarter of section 35 

 township 138, range 59. This twofold condition of the Waconia moraine 

 is observable along a distance of 3 or 4 miles. In sections 32 and 29 the 

 moraine turns to the north and continues through the middle of the west 

 half of this township in hills and short south-to-nortli ridges 25 to 60 feet 

 above the adjoining nearly level inter-morainic surface of till. The Avidth 

 of the hilly belt here and north-northeastward tlu-ough sections 33, 28, 21, 

 and 22, township 139, range 59, is about a mile; but for the next 4 miles 

 north it expands to a width of 2 or 3 miles and is conspicuously displayed 

 in steep hills 50 to 150 feet high, to the eipex of another reentrant angle in 

 sections 33 and 34, township 140, range 59, 2 to 3 miles south of Hobart. 

 Thence the moraine again turns by a right angle, taking a westward course, 

 parallel with the Northern Pacific Railroad and about 2 miles south of it, 

 tlu-ough the south edge of township 140, range 60, where its hills cover 

 an average width of 1 mile and rise 50 to 75 feet above the smoothly 

 undulating expanse of till on each side. 



The Nortliern Pacific Railroad crosses the Waconia moraine close 

 west of Eckelson, whei'e it has a width of about a mile, mai'ked by a 

 rolling and partly knolly contom-, with elevations 25 to 50 feet above the 

 hollows. Within a mile west of the morainic belt the raih-oad crosses an 

 ancient watercourse, a fourth to a half of a mile wide, extending from 

 north to south, occupied by a lake on the north side of the railroad and 

 by a marsh on the south. Both are bordered by bluffs which rise steeply 

 about 40 feet to the general level. This lake is one of a series that 

 extends 6 miles south-southwest, occupying portions of this old water- 

 course, but intervening portions and its farther continuation southward 

 are mostly filled with the glacial drift. Lake Eckelson and a series of 

 smaller lakes, reaching 5 miles south to Walker Lake, mark a second and 

 parallel watercourse, similarly enveloped in other portions by the general 

 drift sheet. The north end of a third series or chain of lakes of the same 

 kind, about 6 miles long, is crossed by the railroad a mile east of Sanborn; 

 and a fourth is indicated by a long lake extending south from the railroad 

 near Hobart. The first of these chains of lakes lies wholly outside the 

 Waconia moraine, but the others are crossed by the east-to-west portion of 



