The upper part of the solum ranges from noneffervescent to effervescent and the remainder of the profile is slightly to violently effervescent. Weak to strong, thick to thin platy structure or is massive. The A1 horizon contains many or common variable sized vesicular pores and has a weak or moderate gravel surface pavement. B2t horizon containing more than 35 percent clay. Weak or moderate, fine to coarse prismatic, and angular or subangular blocky.
Lenses range from extremely hard to hard, very firm or firm and are brittle.
These are the Belted, Monte Cristo, Silent, Silverbow, Tenabo and Timpahute series. B2t horizons and indurated duripans. B2t horizons containing 50 to 80 percent rock fragments. Tenabo soils have loamy control sections and have indurated duripans. Slope gradients are O to 15 percent.