The Btk is typically part of the argillic horizon but may be transitional in some pedons. Reaction is mildly or moderately alkaline. Matrix textures are loam, fine sandy loam, sandy loam, or sandy clay loam modified with 0 to 35 percent cobble, pebbles, or both. Clay ranges from 15 to 28 percent. Calcium carbonate equivalent ranges from 4 to 15 percent.
Reaction is moderately or strongly alkaline.
A C horizon is present in some pedons. These are the Amsden , Buffork , Croydon , Dra , Gelkie , Hourglass , Inchau , Kezar , Kittredge , Leavitt , Lucky , Lyonman , Michelson , Miracle , Monad , Morset , Mult , Newlands , Passcreek , Philipsburg , Primeaux , Rammel , Sonseller, Swede , Tingey , Tripit , Troutdale , Wellsville , Woosley , and Youga series. Amsden, Croydon, Gelkie, Hourglass, Kittredge, Leavitt, Lyonman, Michelson, Monad, Morset, Philipsburg, Tingey, Wellsville, and Youga soils are deep. Buffork, Inchau, Swede, and Troutdale soils are noncalcareous throughout. Dra, Kezar, Lucky, Miracle, Mult, Newlands, Passcreek, Primeaux, Rammel, Sponseller , and Woosley soils have a lithic contact at 20 to 40 inches.