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The Demopolis series consists of shallow, well drained, very slowly permeable soils that formed in materials weathered from chalk and soft limestone. These soils are on ridgetops and side slopes in uplands of the Alabama, Mississippi, and Arkansas Blackland Prairie MLRA. The average annual air temperature is about 64 degrees F. and the average annual precipitation is about 58 inches. Slopes range from 1 to 35 percent.