The Sunapee series consists of very deep, moderately well drained soils formed in till. They are on glaciated uplands.
Permeability is moderate in the solum and moderate or moderately rapid in the substratum.
Slope ranges from 0 to 60 percent. Sunapee gravelly fine sandy loam on a 4 percent southeast facing slope in a stony, forested area. Solum thickness ranges from 18 to 39 inches. Rock fragments range from 5 to 35 percent in the solum and 5 to 55 percent in the substratum. Unless limed, the solum ranges from extremely acid to strongly acid and the C horizon from extremely acid to moderately acid.