138 



The Ohio Journal of Science [Vol. XVII, No. 5, 



The present stream cycle may be said to be in an advanced 

 stage of youth, developed on a remarkably level till plain, 

 which is varied in places by crescentic moraines and feeble 

 out wash, kame and esker deposits. 



Most of the quadrangle belongs to the prairies of the more 

 nearly level type; but the Allegheny Plateau occupies the 



OHIO 



Fig. 1. The Columbus Quadrangle in relation to Ohio counties. Columbus here 



shows as a Greek cross. 



eastern margin, though its characteristic features are nearly 

 concealed through the leveling effects of the drift mantle. An 

 active, growing city, and a prosperous farming community with 

 their transportation, manufacturing, and residence elements 

 have developed and fitted down upon these physical features, 

 until there exists today a good degree of adjustment and 

 harmony of physical and cultural factors. 



