WESTERN RED HILLS. 



27 



The area of the western division is about 4,400 square 

 miles, or 5,700 with the lime hills. It continues into Missis- 

 sippi for a considerable distance, with the soils gradually 

 becoming more silty northwestward, but the lime hills sub- 

 division at or about the State line passes into a sort of prairie 

 region. 



GEOLOGY. 



The geological formations comprise several different 

 horizons, most of them with no very striking lithological 

 characteristics. There are some exceptions to the last state- 



FIG. 2. Old field or weedy pasture on strongly calcareous soil 

 (Midway formation) near eastern edge of Wilcox County. Trees in 

 background nearly all cedars. June 12, 1919. 



ment, however, the most notable of which is the Buhrstone 

 or Tallahatta formation, a sort of sandstone which is quite 

 resistant to erosion and forms some high ridges, known lo- 

 cally as mountains. This crops out in a belt a little north of 

 the center of the region (shown on the map), and again in 

 a shorter parallel belt in the Hatchetigbee anticline,* in 

 the midst of the lime hills. The underlying stratum of the 

 lime hills, exposed in a number of bluffs and hillside ledges, 

 is mainly a soft whitish limestone, easily cut with a saw 



*See chapter on stratigraphy, under General Features, farther 

 on (page 93). 



