13. SOUTHWESTERN PINE HILLS. 113 



of the state. If we leave out of consideration the largest 

 mill in the state, which although it draws some of its 

 timber from this region is located in the next, there are 

 listed from this region in the Southern Lumberman's di- 

 rectory only 10 sawmills, with an average capacity of 

 9,300 feet a day. The largest one cuts 25,000 feet a day, 

 and has 7 miles of tram-road. If we assume that half 

 the timber for the big mill at Lockhart (mentioned 

 on page 121) comes from the lime-sink region, and 

 count that mill as one, the average capacity for the 

 region would be nearly doubled. All the mills cut 

 long-leaf pine, 3 short-leaf pine, and 3 poplar. In the 

 last decade of the 19th century there must have been 

 nearly as many sawmills in proportion to area in this re- 

 gion as in that next to be described, but now the farmers 

 have almost put tiie lumbermen out of business. 



13. Southwestern Pine Hills. 



(Figures 43-48.) 



This attractive region, covering about 5,000 square 

 miles in Alabama, extends from near the Savannah River 

 in Georgia through West Florida to southern Mississippi, 

 and reappears in Louisiana. 



References. — Bartram, Mohr 3 (525, 527, 529-530), 

 Mohr 5 or 6 (38-39), Mohr 8 (110-124, 125-127, 822), 

 Smith 6 (64-67, 154-158), Smith 7 (285-293, 529-540), 

 Smith 8 (98-99, 101-107, 681-687, 690-704; some of this 

 by L. C. Johnson), Smith 9 (22-24, 250-251, 302-316), 

 Tuomey 2 (148-149), Stelle. Also U. S. soil surveys of 

 Baldwin and Mobile Counties. 



Geology and soils. — The oldest strata exposed in this 

 region are mottled clays and coarse loamy cross-bedded 

 sands, with various shades of pink, yellow, purple, etc., 

 all essentially non-calcareous and devoid of fossils. Much 

 of this material is indistinguishable, to the naked eye at 

 least, from the strata underlying the long-ieaf pine hills 

 of the central pine belt (region 6B), although it is sup- 

 posed to be not older than Pliocene, and therefore very 

 much younger than the central pine belt. On top of this 



