303] 



B. Wade 



105 



The above section occurs in the top of the divide which 

 is probably more than 300 feet above the waters of the Ten- 

 nessee and Cumberland Rivers. This divide is a northern 

 extension of the Western Highland Rim of Tennessee and it 

 is probable that further study of the plateau between the 



FIG. 1. 



Sketch map of the Eastern Gulf area showing the northward 

 extension of the Tuscaloosa formation from the previously mapped 

 area in solid black. 



1. Section in Trigg County. 



2. Section in Dickson County. 



3. Section in Lewis County. 



4. Section in Wayne County. 



Canton and McEwen localities will reveal isolated occur- 

 rences of Tuscaloosa that form an almost unbroken chain of 

 the remnants of this formation from Kentucky across Ten- 

 nessee into Mississippi and Alabama. 



A study of a map 5 of the Upper Cretaceous belt of the 



6 Stephenson, L. W.., " Cretaceous Deposits of the Eastern Gulf 

 Region." U. S. Geological Survey, 1914, Professional Paper 81, map. 



