MAIN MORAINIC SYSTEM OF THE SCIOTO LOBE. 417 



from 37 to 98 feet. Each well has about 25 feet of till at the surface, 

 beneath which is sand and gravel. The variations hi the depth of the wells 

 is due to the variations in the distance through the sand to a gravel bed 

 coarse enough to be screened by the strainer placed at the bottom of the 

 drive pipe. A gas- well boring at Fountain Park struck rock at 106 feet. 



At the railway station in Woodstock a flowing well obtains water from 

 gravel below till at a depth of 50 feet. On the uplands south of Wood- 

 stock and Fountain Park rock is struck in places at about 50 feet. 



At Cables and west from that village there is a lowland tract crossing 

 the moraine, and near the water parting rock is exposed to a height of 5 or 

 10 feet above the level of the Columbus and Indianapolis Railwa}-. Above 

 the rock are heavy beds of gravel and cobble which are capped by till. 

 The eastern slope of the morainic belt (both on upland and lowland) carries 

 heav}^ deposits of till, but the western slope contains much more gravel than 

 till, and the lowlands are underlain extensively by gravel, as indicated by 

 the well sections. 



In northeastern Champaign and southeastern Logan counties there are 

 numerous limestone quarries, the rock surface being higher here than it is 

 farther south, and the drift correspondingly thinner. The drift has, how- 

 ever, in many places a thickness of 50 to 75 feet or more. 



At Middleburg, near the inner (eastern) border of the niorainic system, 

 there are limestone quarries, but in portions of the village, at levels as low 

 as the quarries, wells penetrate 60 to 90 feet of till before reaching rock. 



On "Bald Knob," a large gravel hill near the outer border of tins 

 moraine, in southern Logan County, a well was sunk many years ago to a 

 depth of 111 feet without obtaining water. It was entirely through coarse 

 gravel and cobble. 



On an elevated part of the moraine east of West Liberty, perhaps 

 200 feet above the station, a well on Jonathan Parker's farm penetrated 

 194 feet of drift, striking shale at the bottom. A well immediately north 

 of West Liberty, on the upland, penetrated about 170 feet of drift. The 

 altitude is 90 to 100 feet above the railway station, or about 1,200 feet 

 above tide. As noted previously, a gas boring in West Liberty penetrated 

 216 feet of di'ift. 



At Zanesfield a boring for gas is thought by citizens to have passed 

 through 125 feet of drift, but no reliable record could be found. Noi-th of 



MON XLI 27 



