 The unincorporated community of Markleton is located east of PA Route 281, on the Casselman River which flows along the southeastern edge of Upper Turkeyfoot Township.Laurel Hill Creek flows through Upper Turkeyfoot Township, with tributaries such as Green King Run / Whipkey Run, Mud Lick Run / Mose King Run, and Sandy Run joining its stream before it enters Lower Turkeyfoot Township.As of the census of 2000, there were 1,232 people, 450 households, and 369 families residing in the township.