The Pekin series is found along Fishing Creek and its tributary Huntington Creek. The uppermost layer, a dark brown silt loam that extends to underground, lies over a layer of brown silt loam with 10 percent gravel extending underground. The subsoil is mottled, brown, silty clay loam with cobbles and extends to underground. Bedrock occurs at a depth of underground. The Pekin soils near the creek contain more cobbles than typical Pekin soils. Soils of the Chen1ango-Pope-Holly series have also been found along it.