The Judkins series consists of moderately deep, well drained soils that formed in material weathered from rhyolite and closely related bedrock. Judkins soils are on uplands and have slopes of 1 to 80 percent.
Permeability is moderately slow.
Judkins extremely stony loam, forest. All of these soils except Scandard, Tamred and Timberlin are deeper than 40 inches to any bedrock. Condie soils have Bt horizons with hue of 5YR through 10R. Guiser soils have average annual soil temperature of 42 to 47 degrees F. Jonda soils have a calcic horizon at 10 to 21 inches. Mulgon soils have hues of 7.5YR or 5YR in the Bt. Namon soils have Bt horizons of very cobbly very fine sandy loam to very cobbly heavy sandy loam.