BLANCHARD OR DEFIANCE MORAINE. 595 



deep which did not reach rock. It is on Mrs. James Haymaker's farm. 

 The altitude of the well mouth is about 1,100 feet above tide. The Cleve- 

 land and Canton Railway has driven spiles in the borders of a swampy 

 tract between Streetsboro station and Streetsboi'o Corners to a depth of 

 127 feet without reaching- rock. The above sections indicate a deep 

 valley between Streetsboro and Kent in what is now a gently undulatory 

 district but little lower than the sandstone hills. No definite knowledge as 

 to its preglacial course and connections was obtained, since the region is 

 so heavily covered with drift in all directions as to obscure the preglacial 

 topography. 



Newberry reports a well in the valley of Cuyahoga River, near the 

 line of Cuyahoga and Summit counties, that struck rock at 220 feet below 

 the level of the stream and about 175 feet below the level of the surface of 

 Lake Erie.-^ Several borings in Cleveland show a rock floor much lower,^ 

 the lowest level being nearly 500 feet below Lake Erie, or not more than 

 100 feet above tide. 



Within the city of Medina a range in the thickness of the drift from 

 zero up to 60 feet was noted, the greatest depth reported, being in a well 

 for the city at the northwest corner of the public square. The altitude is 

 about 30 feet greater at this well than at rock outcrops in the southwest 

 part of the city. 



In Chatham Center a well at E. Talbott's, 42 feet deep, obtains water 

 from a gravel bed beneath till. A well at the crossroads in this village, 56 

 feet in depth, did not reach rock. On Mr. Sanford's farm, IJ miles south 

 of Chatham Center, a well was made many years ago by Mr. Packard 

 which was still in the drift at a depth of 50 feet. These wells are all near 

 the crest of the morainic ridge that follows the west side of East Black 

 River. 



At Lodi rock is exposed in the low ground near Black River and is 

 reported to be struck at slight depth beneath the Harrisville Marsh, south 

 of that village; but a deep channel has been discovered west of Lodi in the 

 lowland tract connecting Black River and Killbuck Creek, the drift there 

 being about 200 feet in depth. 



At the village of Homerville, which stands just south of the Defiance 



1 Geology of Ohio, Vol. I, p. 205. 



2 Am. Geologist, Vol. XX, pp. 176-181, PL XIII. See also Bull. Geol. See. America, Vol. VIII, 

 1897, pp. 7-13. 



