F. Mean annual precipitation ranges from 35 to 45 inches. In addition to the similar Gwinnett soils, these are the Cecil , Cullen , and Madison soils. The Cecil, Cullen, and Madison soils formed in felsic or mafic crystalline residuum on adjacent upland landform positions. Medium to rapid surface runoff. Cleared areas are used for crops or pasture.
Principal crops are corn, small grain, and hay.
Common trees in woodland areas are loblolly pine, shortleaf pine, Virginia pine, northern red oak, southern red oak, and hickory. Understory plants include dogwood, eastern redbud, and sassafras. The series is of small to moderate extent. The December 1996 revision restricts the Hiwassee series to Typic Rhodudults on high terraces. The Hiwassee series was reclassified to Rhodic Kanhapludults in 1988, and to Typic Kanhapludults in 1993.