The Aftaden series consists of shallow, well drained soils that formed in eolian sediments and material weathered from basalt.
Permeability is moderately rapid.
Aftaden soils are on uplands with slopes of 1 to 15 percent. Depth to bedrock - 10 to 20 inches. Coarse fragments - 5 to 25 percent. Surface cobbles - 0 to 35 percent. This is the Sparkhule series in the same family.