National Parks near Dark Hollow Trail, Perry County, Pennsylvania Dark Hollow Trail Main Page HIGH QUALITY TOPO MAP, CLICK HERE More Information about Dark Hollow Trail, Perry County, Pennsylvania Nearest metro area is Harrisburg-Carlisle, Pennsylvania Click here for more outdoors activities near Harrisburg-Carlisle, Pennsylvania General Camping Information List of nearby National Parks: Catoctin Mountain Park, Thurmont - MD, 47.2 miles away Appalachian National Scenic Trail, Harpers Ferry - WV, 71.8 miles away Potomac Heritage National Scenic Trail, McLean - VA, 71.8 miles away Glen Echo Park, McLean - VA, 75.7 miles away Greenbelt Park, Greenbelt - MD, 76.1 miles away * Distances listed are direct linear distances, actual travel distance may be different. Go to Pennsylvania Outdoors Index