• Home
  • Downloads
  • Return to Portal
  • #KnowBeforeYouGo

    Be sure to check with the Challis-Yankee Fork Ranger District office prior to traveling along the Custer Motorway. Winter conditions impede travel; the Motorway is usually accessible mid to late June through late October. Note that the 35-mile road is dirt/gravel until Challis. Conditions can vary widely due to the season and weather events.