KENTUCKY GEOLOGICAL SURVEY. 11 



generation for which it would receive little return, but oncom- 

 ing generations would bless their forefathers. The disastrous 

 floods which cause very great loss in the valleys of the large 

 rivers are by many held to be largely due to the extensive de- 

 forestation which the land has undergone. This is probably the 

 only w r ay in which these Eden lands can be made of any value at 

 all. No mineral wealth of any kind has yet been discovered in 

 this formation, nc-r is likely to be. In a great many places it 

 contains materials suitable for the manufacture of Portland 

 cement, but few localities on this formation are favorably sit- 

 uated for shipping facilities or for cheap supplies of fuel. The 

 Eden underlies considerable areas in Kenton, Campbell, Pen- 

 dleton, Bracken, Robertson, Harrison, Nicholas, Bath, Fleming, 

 Montgomery, Clark, Madison, Garrard, Boyle, Washington, 

 Nelson, Spencer, Anderson, Shelby, Franklin, Scott> Henry, 

 Owen and Grant counties. 



Surrounding this belt of usually poor country is another belt 

 in which the higher Ordovician formations produce the soils. 

 These formations contain more limestone than the Eden and 

 hence produce a more fertile land. But in general they do. not 

 produce soils equal to those of the blue grass region. 



Geological History. 



The region under consideration forms part of what is known 

 as the Cincinnati anticline or uplift, a broad low swell of land 

 with its axis extending from Tennessee northwardly through 

 Kentucky into Ohio where it divides, one branch continuing 

 northwardly through Ohio, the other northwestwardly through 

 Indiana into Illinois. The rocks composing this anticline are 

 all of marine formation. The time of uplift has not been defi- 

 nitely determined. The evidence seems to show that it was a 

 progressive movement, with perhaps occasional halting and 

 even recession. Probably the movement w r as not always gen- 

 eral ; some parts may have been slowly rising, while others were 



