CHAPTER XXXVI. 



REPORT ON THE GEOLOGY OF MORROW COUNTY. 



BY N. H. WINCHELL. 



SITUATION AND AREA. 



Morrow county is situated very near, but a little north, of the center 

 of the State, and was among the first settled, the first inhabitants coming 

 largely from the New England States, and from New York and Pennsyl- 

 vania. It is bounded on the north by Crawford and Richland counties, 

 east by Richland and Knox, south by Knox and Delaware, and west by 

 Delaware and Marion. Its form is nearly that of a rectangle, lying 

 north and south. Its western boundary is broken by its wanting a town 

 in the north-west corner, and by its inclosing Westfield in the south-west 

 corner. Its area, given by the State Boaid of Equalization in 1870, i» 

 253,149 acres, of which 83,698 acres are arable, 91,045 acres are meadow 

 and pasture land, and 78,406 acres are uncultivated or wood land. The 

 average value, exclusive of buildings, is $30.40 per acre. 



NATUEAL DKAINAGE. 



The most of the drainage of the county is into the Scioto river. Its east- 

 ern portions are drained into the Muskingum ; yet the Sandusky, which 

 flows into Lake Erie, has some of its sources in the township of North 

 Bloomfield, in the northern portion of the county. The streams are not 

 large, but are ample for most purposes in an agricultural community. 

 Many flouring mills exist in the county, the motive power being 

 hydraulic. 



SURFACE FEATURES. 



The undulations in the rocky structure are usually very gentle, even 

 imperceptible, through the Drift sheet. Hence the general surface was 

 originally nearly flat. The unevenness that now prevails in some parts 

 of the county is mainly due to subsequent causes, and can be referred to 

 the known effect of atmospheric forces. The eastern half of the county 

 is decidedly rolling, and even hilly ; the western half is more level. The 

 Drift was at first deposited with unequal thickness, whatever may have 

 been the condition of the pre-existing surfaces. In the valleys of those 

 streams that flow toward the east, in the eastern part of the county, there 



