The Sideling Hill History Trail in Buchanan State Forest is a two-mile loop trail that visits sites of historical importance in the area around the CCC Camp located on Oregon Road. RR Arch Trail takes you to the 137-year old stone aqueduct for Woodridge Run. Then we ascend to the top of the South Penn RR grade. It is steep in a couple spots, but mostly easy walking. Visit Sideling Hill Tunnel and return via the abandoned turnpike. This walk is not stroller or wheelchair accessible. Pets are allowed and must be leashed.