558 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



The clay is described as free from pebbles. It is ustially blue, but it 

 is stated to be nearly white in some of the wells. 



A gas-well boring at Sterling is reported by J. E. Barnard, a resident 

 of that village, to have penetrated nearly 400 feet of drift before striking- 

 rock. It passed through several alternations of clay and fine sand. The 

 rock floor is here, therefore, at about the level of Lake Erie (573 feet above 

 tide), though it is but a few miles from the continental divide. There 

 are no borings either to the north or south along this valley in which a 

 lower point in the rock floor has been struck, but the silty character of the 

 drift seems to throw doubt upon the existence of a southward outlet. 

 Toward the north there is a lowland tract connecting the head of Chippewa 

 Creek with Rocky River. It seems not improbable that this may contain 

 a channel deep enough to have been the outlet for this deep portion of the 

 Chippewa Valley and that the divide at the time this valley was excavated 

 lay south of Sterling. 



A well at McVicker's hotel, in West Salem, is reported as not reaching 

 rock at a depth of 80 feet. This is located between the Wabash and St. 

 Marys moraines. At Savannah wells strike rock at from 15 to 30 feet. 

 The drift is mainly till. 



At E. Murray's, 4 miles west of Savannah, on the crest of the Wabash 

 moraine, rock is struck at 50 feet, and on a neighboring farm, also on the 

 morainic crest, at 42 feet. About one-half mile north of the crest, on lower 

 ground, Mr. Murray's well struck rock at 20 feet and obtained a flow of 

 water from that depth. At Adario, about a mile southwest of Mr. Murray's, 

 on the outer border plain, some flowing wells have been obtained from the 

 drift at a depth of 20 feet. 



Near Greenwich the drift has been penetrated 65 to 100 feet by water 

 wells without reaching rock, but in places in and near that village rock is 

 struck at about 35 feet. 



At Shiloh wells 40 to 45 feet deep have been made, none of which 

 reach rock. Three miles north of Shiloh rock is struck at 20 feet, and 

 there are outcrops along Black Fork, on the outer border of the moraine, a 

 few miles southeast of Shiloh. 



At Plymouth, in the midst of the moraine, there are rock quai-ries on 

 ground but little lower than the bordering moraine, but in the western pait 

 of the village, near the public square, wells penetrate about 80 feet of drift. 



