408 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



above the surface. Mount Vernon derives its water suppl)^ almost entirely 

 from these flowing- wells. 



Several attempts to obtain natural gas have been made in and about 

 Mount Vernon, and the borings show much variation in the thickness of the 

 drift. The writer is indebted to A. D. Bunn, of Mount Vernon, for statistics 

 concerning the drift penetrated. A boring at the waterworks, on ground 

 about the same altitude as the Baltimore and Ohio station (991 feet), struck 

 rock at 224 feet. The drift is mainly sand and gravel. This well is known 

 as the Power-house well. About 2,000 feet south-southwest of the power- 

 house well, and at about the same level, 234 feet of drift was penetrated. In 

 the northern part of the city, on ground perhaps lOO feet higher than the 

 station, a well, known as the Banning well, penetrated 90 feet of drift, mainly 

 sand and gravel. A boring at the railway crossing in the west part of Mount 

 Vernon penetrated only 90 feet of drift. About a mile east-northeast from 

 the railway station, in a tributary of Owl Creek, where the altitude is about 

 the same as at the station, only 8 feet of drift was penetrated. Two and 

 one-half miles northeast of the central part of Mount Vernon a well called 

 the Simpkins well penetrated 90 feet of drift. Its mouth has an altitude 

 about 100 feet above the station. A well made many years ago at the court- 

 house is reported by William McClelland, of Mount Vernon, to have obtained 

 water in gravel at a depth of 75 feet, after penetrating much blue clay. 



At Bangs .station, 4 miles west of Mount Vernon, several flowing wells 

 have been obtained on ground having about the same elevation as the 

 station, 1,102 feet. Their depth is 40 to 45 feet, and when first struck water 

 would rise 20 to 22 feet above the surface. A well at Samuel Finnerty's, on 

 somewhat higher ground, has a depth of 74 feet. In all these wells there is 

 till above the water vein. The source of the water sui)ply is probably from 

 adjacent upland tracts, whose altitude is 150 feet or more above the wells. 



On the elevated tract along the inner member of the morainic system 

 in ^'\■estern Knox County the drift is so thick that rock is rarely struck in 

 wells, and scarcely an outcrop of rock occurs in ravines. The appearance 

 of the surface supports the conclusion that the hills and ridges have a drift 

 mantle 100 feet or more in thickness, while buried valleys have 400 feet or 

 more. W. G. Tight reports that a well at Homer, in northeastern Licking- 

 County, passed tln-ough 400 feet of drift. J. M. McFarland's well, on an 

 elevated tract at Appleton, has a depth of 167 feet and does not strike 



