The Michigamme series consists of moderately deep, well drained and moderately well drained soils formed in a silty or loamy mantle over loamy glacial till underlain by igneous or metamorphic bedrock. These soils are on ground moraines.
Permeability is moderate.
Slopes range from 1 to 70 percent. Michigamme cobbly silt loam - forested. Solum thickness ranges from 20 to 40 inches. Texture of the solum includes silt loam, loam, very fine sandy loam, fine sandy loam, sandy loam or the gravelly or cobbly analogs of these textures. Volume of gravel ranges from 0 to 25 percent and volume of cobbles and stones ranges from 0 to 35 percent throughout the solum.