The Wayne National Forest is located in the south-eastern part of the US state of Ohio, in the Unglaciated Allegheny Plateau. It is the only national forest in Ohio. Forest headquarters are located between The Plains and Nelsonville, Ohio, on US Route 33, overlooking the Hocking River. The originally forested land was cleared for agricultural and lumbering use in the late 18th and 19th century, but years of poor timbering and agricultural practices led to severe erosion and poor soil composition. The Wayne National Forest was started as part of a reforestation program.