Nebraska
Difficult
Snake River Canyon Fossil Trail
Fossil hunting in Nebraska's hidden badlands canyon
Surface: Rock
Nebraska
Difficult
Indian Cave Bluff Trail
Limestone bluffs meet Missouri River history
Nebraska
Moderate
Smith Falls Canyon Trail
Nebraska's tallest waterfall via remote canyon run
Nebraska
Moderate
Wildcat Hills Ridge Road
WPA ridge trail with Scotts Bluff panoramas
Nebraska
Difficult
Fort Robinson Backcountry Military Road
Crazy Horse's surrender route through Pine Ridge
Hawaii
Difficult
Kauai North Shore Backway
Technical route to Na Pali's forbidden coast
Hawaii
Expert
Keauhou Landing Road
Lava rock gauntlet to Captain Cook's final landing
Hawaii
Moderate
Keanakakoi Crater Rim Road
Ancient quarry roads through volcanic glass fields
Hawaii
Difficult
Molokai Forest Reserve Ridge Road
Into Molokai's last native cloud forests
Hawaii
Moderate
Puna Coast Lava Access Road
Where molten rock meets the Pacific Ocean