Greenland
Extreme
Thule to Camp Century Abandoned Ice Road
Cold War ghost road to nuclear secrets under ice
Surface: Ice
Greenland
Difficult
Qaarsut to Uummannaq Dog Sled Trail
Ancient dog sled route across frozen fjords.
Greenland
Moderate
Sisimiut to Kangerlussuaq Ice Road
Greenland's frozen highway across the polar desert.
Greenland
Extreme
Sermilik Fjord Ice Road
Winter-only fjord crossing to remote settlements
Greenland
Extreme
Inland Ice Sheet Research Station Road
Ice sheet crossing to abandoned Cold War radar station