It is silt loam or silty clay loam. Reaction is strongly acid to slightly acid. It is silt loam, silty clay loam, or mucky silt loam. Individual layers are sapric material or hemic material or stratified woody mucky peat, muck, sedge mucky peat, and sedimentary peat. The fiber content ranges from 20 to 80 percent unrubbed and 1 to 25 percent rubbed.
Reaction is strongly acid or moderately acid.
Some pedons have a mineral C horizon below 40 inches. This is the Elvers and Schooley soils in other families. Elvers soils are coarse-silty. Schooley soils are ashy over loamy. The Snohomish soils are on flood plains and backswamps of flood plains at elevations of 5 to 300 feet.