The Decross series consists of very deep, well drained soils formed in alluvium from limestone.
Decross soils are on relict alluvial fans, fan aprons, and pediment toeslopes.
Slopes are 0 to 60 percent. The mollic epipedon is 16 to 40 inches thick. Depth to the calcic horizon ranges from 20 to 40 inches. EC is less than 2 mmhos. Reaction is slightly acid through slightly alkaline.