They are shallow to a dense basal till and very deep to bedrock.
Permeability is moderate in the solum and moderately slow or slow in the dense substratum.
Slope ranges from 0 to 35 percent. Mean annual temperature is about 44 degrees F, and mean annual precipitation is about 44 inches at the type location. Colonel fine sandy loam, on a 5 percent northwest-facing slope in a very stony wooded area. 44 degrees 32 minutes 30 seconds N. and long. 70 degrees 18 minutes 38 seconds W., NAD 27.