South Carolina
ExtremeSumter National Forest Caesar’s Head Rim Trail Technical Challenge
Blue Ridge granite ledges with cliff exposure
Difficulty: Extreme
Level 5
Mississippi
ExtremePushepatapa Creek Wildlife Management Area Technical Swamp Circuit
Mississippi's gnarliest swamp challenge
Kunene
ExtremeKaokoveld Highlands Circuit
Desert elephant paths through Africa's last frontier
Fezzan
ExtremeJebel Acacus Rock Art Circuit
12,000-year-old rock art galleries in Sahara towers
Algeria
ExtremeTassili n’Ajjer Sahara Circuit
Stone age galleries in a sandstone cathedral.
Chad
ExtremeEnnedi Plateau Desert Crossing
Lost world of the eastern Sahara
New Zealand
ExtremeHaast Pass Alpine Circuit (West Coast)
Extreme alpine challenge through glacial valleys
Russia
ExtremeYamal Peninsula Winter Ice Road
Arctic gas field access across frozen wasteland
Russia
ExtremeVerkhoyansky Ridge Ice Road Circuit
World's coldest overland route through Pole of Cold
Magadan Oblast
ExtremeMagadan-Ust Nera Winter Road (R504 Extension)
Into Siberia's frozen heart via Stalin's road