Montana
ModerateCentennial Mountains Red Rock Pass Route
Continental Divide crossing through big sky country
Surface: Mixed
South Dakota
ModerateNeedles Highway to Iron Mountain Road
Granite spires and engineering impossibilities
USA
ModerateMedicine Lodge Creek Road
Sacred petroglyphs and technical creek crossings
USA
DifficultChief Joseph Scenic Highway Backcountry Loop
Alpine mining roads above the tourist highway
Idaho
ModerateHenrys Lake to Targhee Pass Mining Road
Continental Divide mining road through ranch country.
Montana
ModerateGardiner to Cooke City High Route
Gold rush wagon road through grizzly country
USA
DifficultSierra Madre Range Road
Wyoming's forgotten mountain spine
USA
DifficultSeminoe to Alcova Reservoir Backcountry Route
Desert crossing through Wyoming's uranium country.
USA
ModeratePowder River Pass to Cloud Peak Wilderness
Mining road to Cloud Peak wilderness boundary
Montana
ModerateContinental Divide Trail – Red Rock Pass
Pioneer wagon route over Continental Divide