Rock fragment content is 5 to 35 percent in the upper part of the argillic horizon and 20 to 60 percent in lower part but averages less than 35 percent in the particle-size control section. Reaction is moderately acid through neutral. The upper part of the Bt horizon is typically a light clay loam. The lower part of the Bt is typically a cobbly, stony, or very stony clay loam. Clay content of the particle-size control section ranges from 25 to 35 percent.
Reaction is slightly acid or neutral.
Amsden, Gebson, Gelkie, Leavitt, Michelson, Monida, Morset, Oro Fino, Philipsburg, Rainbolt, Tingey, and Wellsville soils have consistent horizons of visible secondary calcium carbonate accumulation above a depth of 40 inches. Coldsprings, Lyonman,and Youga are in a drier climatic setting and are dry in some part of the moisture control section at some time during the summer or fall. Croydon soils have an E horizon and have hue of 10YR through 5Y. Dra, Kezar, Lucky, Miracle, Mult, Newlands, Passcreek, Primeaux, Rammel, Shotgun, Slacks, Troutdale, and Woosley soils have a lithic contact above a depth of 40 inches. Hourglass soils have hue of 7.5YR or 10YR, formed in material weathered from limestone and sandstone and have moisture control sections that are dry less than 45 days when the temperature at 20 inches is greater than 41 degrees F. Buffork, Cific, Inchau, Lymanson, and Tripit soils have a paralithic contact above a depth of 40 inches. Kittredge soils have hue of 7.5YR to 2.5Y, and contain a significant proportion of flat mica platelets numerous enough and large enough to affect the soil's physical characteristics.