Slickensides range from common to many and are a few inches to a few feet across. These are the Billyhaw , Pledger , and Trinity series in the same family, and the Burkeville , LaCerda and Redco series. Billyhaw soils are poorly drained, deep and have brighter colors. Pledger and Trinity soils are on flood plains. Wiergate soils are on broad, nearly level to gently sloping uplands.
Slopes are usually plane or slightly concave.
Slopes are mainly less than 5 percent but range to 12 percent. These soils formed from weakly consolidated clays and marls of Tertiary age, mainly of the Fleming formation. These are the competing Burkeville , Garner , and Redco series, and the Etoile and Woodville series. Burkeville and Redco soils are on similar positions. Etoile and Woodville soils are mostly slightly higher in the landscape and have argillic horizons.