Ireland
ModerateDonegal Highland Green Road Network
Forgotten drovers' roads through Donegal wilderness
Surface: Mixed
Ireland
ModerateHealy Pass Beara Peninsula Track
Ancient smugglers' pass through the Caha Mountains
Ireland
ModerateRing of Beara Highland Track
Wild Atlantic way meets mountain wilderness
Pennsylvania
ModerateHickory Run State Forest Boulder Field Loop
Glacial boulder field meets Pennsylvania forest roads
Pennsylvania
DifficultDelaware State Forest Thunder Swamp Historic Circuit
Historic logging roads through Thunder Swamp wilderness
Pennsylvania
DifficultMoshannon State Forest Quehanna Highway Backcountry Loop
Cold War ruins in Pennsylvania's nuclear wilderness
Pennsylvania
ModerateLoyalsock State Forest Miller Run Road
Technical forest road through wild Loyalsock drainage
Pennsylvania
ModerateTiadaghton State Forest Black Forest Trail Service Road Network
Mountain service roads through PA's Black Forest
Ohio
ModerateZaleski State Forest Moonville Tunnel Rail-Trail
Historic rail grade to Ohio's most famous ghost town
Ohio
ModerateOak Point State Park Glacial Esker Trail
Glacial sand ridges on ancient lake bottom