Nebraska
Difficult
Fort Robinson Backcountry Military Road
Crazy Horse's surrender route through Pine Ridge
Difficulty: Difficult
Level 3
Nebraska
Difficult
Missouri River Breaks Trail
Wild Missouri's technical challenge.
Hawaii
Difficult
Pepeekeo Scenic Drive Four Mile Extension
Jungle track to forgotten plantation ruins
Hawaii
Difficult
Kauai North Shore Backway
Technical route to Na Pali's forbidden coast
Hawaii
Difficult
Oahu Forest Reserve Schofield-Waikane Trail
Military ridge crossing through Oahu's hidden heart
Hawaii
Difficult
Molokai Forest Reserve Ridge Road
Into Molokai's last native cloud forests
Hawaii
Difficult
Maunakea Summit Road
Sacred summit climb to astronomical observatory
Hawaii
Difficult
Pohakuloa Training Area Perimeter Road
High desert military perimeter through volcanic saddle
Hawaii
Difficult
Mauna Loa Observatory Road
Brutal climb up the world's most massive volcano
Hawaii
Difficult
Old Pali Highway
Abandoned highway through Ko'olau razor ridges