They are in depressions in glacial ground moraines, shallow till ridges, and glaciofluvial deposits. Slope is 0 to 2 percent.
Permeability is moderately slow to moderately rapid.
Mean annual precipitation is about 45 inches and mean annual temperature is about 45 degrees F at the type location. Bucksport muck, in a wooded bog. 44 degrees 36 minutes 10 seconds N. and long. 68 degrees 45 minutes 22 seconds W., NAD 27. The thickness of the organic material is greater than 51 inches and ranges to over 12 feet.