Bedded shale is between depths of 40 and 60 inches in some pedons. These are the Beadle , Carlson , Harney , Kirley , Mento , Peno , Raber , Reliance , and Spearville series in the same family. Beadle, Kirley, Peno, and Raber soils contain more sand in the argillic horizon. In addition, Beadle, Peno, and Raber soils formed in glacial till. McClure soils are on loess-covered uplands that are underlain by clay residuum.
Surfaces are plane or convex.
Slope gradients typically are less than 6 percent but range from 0 to 9 percent. McClure soils formed in 20 to 40 inches of silty materials overlying clayey materials. The mean annual temperature ranges from 45 to 52 degrees F, and mean annual precipitation ranges from 15 to 24 inches. These are the Agar , Carter , Hurley , Promise , Onita , and Reliance soils. Agar and Millboro are in similar nearby landscapes.