Links to other useful sites
- Links below are in alphabetical order
- Appalachian Trails Conservancy
- Appalachian Trail-PA
- Camp Michaux-A Comprehensive Look
- Cooke Township, PA Official Web Site
- Cumberland Valley Appalachian Trail Club
- Cumberland County Official Web Site
- Cumberland Valley Rail Trail (Cumberland and Franklin Counties)
- The Earl Shaffer Web Page
- Hawk Mountain Sanctuary
- Keystone Trails Association
- Kings Gap State Park
- Letort Spring Run Nature Trail (Cumberland County)
- National Audubon Society
- PA DCNR (Pennsylvania Department of Conservation and Natural Resources)
- PA DCNR - Michaux State Forest-Bureau of Forestry
- Pennsylvania Fish and Boat Commission
- Pennsylvania Game Commission
- Pennsylvania Mountain Bike Trails
- Pine Grove Furnace State Park - Official
- Pine Grove Furnace State Park
- Potomac Appalachian Trail Club
- Promised Land Cabin Owners Association
- Sierra Club
- Sierra Club-Pennsylvania
- York Hiking Club