broad flood plains of the Mobile/Al abama/Tensaw Rivers (Mobile quadrangle) 

 and the Grand Bay Swamp (Biloxi quadrangle). The land here is level, 

 frequently flooded, swampy bottomland with meandering streams and sloughs and 

 a very high water table. These areas are mainly used as wetland wildlife 

 habitat and woodlands. The organic Dorovan soils are found in the wetter, 

 lower areas of the flood plain and comprise grayish-brown to black mucky peat 

 overlying mottled dark- grayish-brown to mottled gray subsoil. Levy soils are 

 dark-gray silty loam overlying dark-gray silty clay subsoils on higher ground 

 than Dorovan soils and are adjacent to natural levees along streams. The 

 Iuka soils are dark-brown fine sandy loam overlying dark yellowish-brown fine 

 sandy loam subsoils with mottles of grayish-brown and interpersed with loamy 

 sand and loam. The Johnston soils are also found at higher elevations than 

 the Dorovan soils, in flat areas adjacent to uplands. Their surface is thick 

 black mucky loam overlying gray loamy fine sand and fine sandy loam layers. 

 The Urbo soils have a dark grayish-brown silty clay loam topsoil underlain by 

 grayish-brown silty clay subsoil. They are found in level to gently sloping 

 flood plains draining coastal plains and prairie areas. 



The Annemaine-Wahee-Leaf association (2) is found on the terraces 

 bordering the Mobile/Al abama/Tensaw Delta in Baldwin County, whereas the 

 terraces along the delta (and along the Escatawpa River) in Mobile County are 

 of Izagora-Bethera-Suffolk association (13) soils. These areas are fairly 

 wet woodlands, with little agriculture, and are sparsely populated. The 

 lower lying areas of the Annemaine-Wahee-Leaf association are comprised of 

 Leaf soils, which have dark grayish-brown silt loam over a subsoil of mottled 

 gray silty clay. The Annemaine soils are moderately well-drained, deep soils 

 with a brown fine sandy loam surface layer, a subsoil of yellowish-red clay, 

 and a mottled loamy substratum. The Wahee soils are not as well drained as 

 the Annemaine, and they differ in having a surface layer of dark 

 grayish-brown sandy loam overlying a mottled yellowish-gray sandy clay or 

 sandy clay loam subsoil . 



The Izagora-Bethera-Suffolk association (13) soils were formed in loamy 

 and clayey marine and alluvial sediments on terraces. Izagora and Suffolk 

 soils have loamy subsoils, whereas Bethera soils overlie clayey subsoils. 

 Izagora series soils have a dark brown fine sandy loam surface while Suffolk 

 series soils have dark brown loamy sand surface. Bethera series soils have 

 dark gray loam surface layers, and are located in depressions and drainage 

 ways. The more sloping areas adjacent to natural drainage ways contain 

 Suffolk soils, and above them are the Izagora soils on the gently sloping 

 side slopes and broad flat areas. These areas are mostly woodland, although 

 there is some agricultural potential. As this area is wet and flood prone, 

 it is poor for urban uses. 



The major component of the Coastal Lowlands, exclusive of the alluvial 

 and deltaic plains, is the coastal beach area. This area is composed of 

 white and yellow sand deposits of Recent age, with elevations ranging from 

 sea level to around 7 m (20 ft). In Baldwin County, the coastal beach areas 

 are usually associated with the Fripp-Leon soil association (9). The Coastal 

 Lowlands in Mobile County include the Bayou-Escambia-Harleston association 

 (15) along the coastal terraces in the southern portion of the county, and 

 the Urban Land-Smithton-Bennedale association (16) in the city of Mobile. 



84 



