About one-fourth of the coarse fragments in any horizon break down upon pretreatment. Coarse fragments may be subrounded pebbles or channers. Reaction is mildly or moderately alkaline. A Bw horizon is present in about half the pedons observed and is calcareous throughout. Calcium carbonate equivalent ranges from 15 to 30 percent throughout.
Reaction is moderately or strongly alkaline.
The Cr horizon is weakly consolidated sandstone interbedded with thin lenses of siltstone and discontinuous lenses of consolidated sandstone. The sandstone is calcareous and some lenses contain sodium and gypsum. In some pedons the bedrock has been weathered sufficiently in the upper few inches to allow a C horizon, but the paralithic contact is always above 40 inches. These are the Amesha , Fiveoh , and McFadden series. These soils are deep and have frigid soil temperatures.