The Barbour series occurs near the source of the creek. It is topped with a crumbly, layer of brownish-red silt loam over a loose subsoil of reddish-brown loam with some gravel. The top layer can easily be penetrated by roots and water. Further down is a layer of reddish-brown gravel and sand, which extends to or more underground. The Basher series also occurs along upper Fishing Creek. The top layer is a loose, crumbly, reddish-brown sandy loam extending to underground, and the subsoil is a loose, porous, reddish-brown sandy loam with some gravel, extending to underground. Lower down, there is a layer of red sandy loam with some gravel that extends from underground.