584 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



the land-laid portion, presents all the variations displayed by the moraines 

 outside of it, and has more prominent spurs on its inner or north border. 

 The portion which was deposited below the level of Lake Maumee, and 

 which may be designated the water-laid portion, presents a smooth, some- 

 what flattened surface, decidedly in contrast with the land-laid portion. 



The detailed description which follows begins at the eastern end at the 

 interlobate tract west of Grand River Basin and proceeds westward along 

 the moraine. 



The portion of the morainic series east of the Cuyahoga does not 

 exhibit either a single well-defined crest or a series of such crests which can 

 be correlated with the several distinct belts farther west. Instead, it forms 

 a billowy sea of swells and sags, knobs and basins. It is characterized on 

 its eastern border by numerous sharp knolls and winding ridges, 15 to 50 

 feet in height, with hummocky slopes, among which are occasional basins. 

 In places the basins form a chain, connected by narrow sloughs, but quite 

 as often they are isolated, being either without an outlet or having but a 

 narrow one. The basins just referred to are small, covering but a few acres 

 each. There are also a few large basins covering a square mile or more, 

 some of which contain lakelets. Such are Pundesons Pond, north of South 

 Newberry, and smaller lakes east of that village, and the Twin Lakes near 

 Earlville, and Turtle Lake and Silver Lake north of Cuyahoga Falls. These 

 lakes appear to occupy shallow basins, and nearly all of them have outlets. 

 They are fed by springs from the bordering gravel knolls. 



The western or inner portion of the morainic system, whicli includes, 

 perhaps, all that should be correlated with the Defiance moraine, is charac- 

 terized by a gentle swell-and-sag topography with an occasional develop- 

 ment of sharp knolls and a few small lakes. There is a somewhat distinct 

 belt of sharp knolls lying slightly within (northwest of) the main morainic 

 belt which is thought to be of the date of the Defiance moraine. It con- 

 stitutes a nearly continuous series of knolls covering a belt a mile or less in 

 width, which passes from near Fowlers Mills in a southwesterly course just 

 south of Russell Center and Solon Center to the valley of Tinkers Creek 

 at South Solon, beyond which its continuation was not so definitely worked 

 out. Its knolls are 20 to 50 feet in height, the most prominent ones being 

 in the vicinity of South Solon in Tinkers Creek Valley. In places where 

 sharp knolls are wanting it presents gentle swells and a well-defined relief 

 of 15 to 30 feet above the immediate outer border. 



