 At the northern end of Auburn Road, MD 806 (Catoctin Furnace Road) begins to parallel the northbound side of the U.S. Highway, which follows the eastern boundary of Cunningham Falls State Park just west of the village of Catoctin Furnace.Access to the main section of the state park is provided by Catoctin Hollow Road, which intersects the southbound lanes of US 15 and follows Little Hunting Creek up the mountain.The park's Manor Area is accessible from US 15 a short distance north of Catoctin Hollow Road.