404 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



In the comparatively low tracts that lead back into hilly districts along 

 the glacial boundary in Holmes County the till is underlain by fine 

 calcareous sand or silt of blue and yellow colors, like that in the Cuyahoga 

 Valley near Akron. Wherever this silt was noted the di-ainage is northward 

 from the unglaciated toward the glaciated tract. This situation makes it 

 probable that the silt in question was deposited in small glacial foot lakes 

 formed in advance of the ice sheet. These were subsequently invaded by 

 the ice sheet, which filled the place the lakes had held and deposited till 

 upon the silts. An excellent exposure sliowing several feet of silt may be 

 seen on the Weinsburg and Berlin road, about a mile northeast of Berlin. 



On the elevation where Berlin stands there is scarcely any drift, but a 

 mile east or west from this village on lower land it attains considerable 

 thickness. John Miller, 1 mile west of Berlin, has a well 45 feet deep, 

 and liis neighbor, Chalmers Sharlock, one 40 feet deep which did not reach 

 rock. These wells are within a mile north of the southern margin of the 

 well-defined drift, if not of the glacial boundary. 



At Millersburg rock is struck in tlie vicinity of the court-house at 

 about 75 feet, which gives the rock surface an altitude slightly below the 

 bed of Killbuck Ci'eek. Drift exposures of considerable extent occur in 

 the north part of Millersburg, along tlie east side of the CleA^eland, Akron 

 and Columbus Railway. There is a small amount of ordinary pebbly till, 

 but the great bulk of the drift is a poorly assoi'ted gravelly sand with a 

 slight clayey admixture. Where stratification is traceable the beds are 

 horizontal, with considerable cross bedding, but arching or contorted beds 

 were not observed. 



No records of wells of sufficient depth to show the thickness of the 

 drift were obtained along Killlxick Valley, between Millersburg and Woos- 

 ter. At Wooster the drift is thin on the slopes of the valleys, and a well in 

 the village, two blocks south of the court-house, struck rock at 40 feet. 

 The breadth of the valley bottom in the vicinity of Wooster is such, how- 

 ever, that a channel of considerable size maybe concealed in it. J.H.Todd, 

 of Wooster, has furnished the writer with records obtained in the vicinity 

 of that cit5^ which in some cases extend to a depth of about 100 feet 

 without reaching rock, while on neighboring hills the rock rises 200 feet 

 above the well mouths. 



Between Killbuck Creek and Lake Fork the uplands carry compara- 



