CHAPTER LXXV. 
REPORT OF THE GEOLOGY OF SHELBY COUNTY. 
BY JOHN HUSSEY. 
This county is situated in the second tier of counties from the bound- 
ary line between Indiana and Ohio, and about half-way of the State from 
north to south. It is bounded on the north by Auglaize county, on the 
east by Logan and Champaign, on the south by Miami, and on the west 
by Darke and Auglaize. The county seat is Sidney. The water-shed 
between the Maumee and Miami River systems is partly in the northern 
part of this county. The road known as the Kettler turnpike, in a gen- 
eral way, may be regarded as marking the line of the water-shed, at least 
for some miles of its course, nearest the Laramie Reservoir. The water- 
shed bears to the north-east, after leaving this county, into Hardin and 
W yandot counties. 
ELEVATION OF THE COUNTY. 
At Cincinnati, low water in the Ohio River is four hundred and thirty- 
two feet above tide-water, and the water in the Sidney Feeder is five hun- 
dred and twelve feet above low water in the Ohio, or nine hundred and 
forty-four feet above tide-water. The greatest elevation yet measured in 
the county is one hundred and thirty-four feet, on the Towana turnpike, 
east of the Miami River. The line between this county and Champaign, 
on this turnpike, is one hundred and twenty-one feet above the water in 
the feeder. The greatest elevation on the line of the Stewart turnpike 
is one hundred and twenty-dne feet, and on the line between Shelby and 
Logan counties one hundred and eleven feet above the water in the 
canal. On the Infirmary turnpike the greatest elevation is eighty-seven 
feet, and at the end of this road, on the line between this county and 
Miami, it is forty feet below the level of the canal. On the St. Mary’s 
turnpike, about two miles from Sidney, the highest point is reached at 
one hundred and twelve feet above the water in the canal. The bottom 
of the reservoir is about eight feet above the water in the canal. The 
main canal extends entirely across the county, running in a north- 
