660 GLACIAL FOEMATIONS OF ERIE AND OHIO BASINS. 



From Euclid eastward into Lake County there are only a few low 

 swells and a very faint ridge to mark the position of the moraine, the largest 

 swells being scarcely 10 feet in height. Near the southwest corner of Lake 

 County a more distinct ridge appears, which presents a relief of 10 to 25 

 feet, and has swells 5 to 15 feet in height along its crest and on its slopes. 

 There are also a few knolls scattered over the plain on the south border of 

 the ridge. These features continue through to Chagrin River, a distance 

 of 3 or 4 miles. East of Chagrin River, along the north side of East 

 Chagrin River, there is a ridge 10 to 20 feet in height with a breadth of a 

 mile or less. Its surface is very gently undulating, with swells but 5 to 10 

 feet in height. An old channel follows the south border of this ridge from 

 the bend of Glrand River south of Painesville westward to East Chagrin 

 River, which seems to have been the line of discharge for glacial waters 

 into Lake Maumee. In this channel, about 3 miles southwest of Painesville, 

 there is an outlying ridge that trends northeast to southwest in harmony 

 with the main ridge and rises nearl}^ 50 feet above the level of the channel 

 in which it stands. 



The portion of the Euclid moraine which lies along the south side of 

 Grand River presents a series of loosely connected knolls and short ridges, 

 10 to 20 feet in height, covering a belt only one-half mile to a mile in width. 

 There does not seem to be a definite basement ridge, such as appears in 

 portions of the moraine to the east and west. 



From the Grand River Valley eastward into Pennsylvania the Euclid 

 moraine consists of a faintly outlined ridge with a relief of but 10 to 20 

 feet, yet this is sufficient to hold Griggs Creek in a westward coui'se along 

 its outer border from source to mouth and to cause Mill Creek to turn west- 

 ward into Grand River. In eastern Ashtabula County, Ohio, it causes a 

 tributary of Ashtabula Creek to flow westward on its outer border, while in 

 western Erie County, Pa., it causes a tributary of Conneaut Creek to turn 

 abruptly eastward. As above noted, this moraine has not been recog- 

 nized farther east than the northward-flowing part of Conneaut Creek, in 

 Erie County, Pa. 



Returning to Painesville and taking up the description of the Paines- 

 ville moraine, we find a somewhat sharp ridge, 20 to 40 feet in height, 

 and from a half mile or less to fully a mile in width. Its crest as well as 

 slopes carries swells and sags, with oscillations of 10 to 25 feet or more. 



