WorldwideUnited StatesIdahoCuster CountyWorldwideUnited StatesIdahoCuster CountyCycling Climbs in Custer County There are 3 cycling climbs in Custer County.Challis (2)Mackay (1)All Cycling Climbs in Custer CountyClicking on the climb category column will toggle between category and difficulty score.NameLocationDistanceAvg GradientTotal ElevationClimb Category1.Golf Course to Custer MotorwayChallis 6.43 km3.5%222 mCat. 32.1st Street to Garden Creek BridgeChallis 3 km3.5%105 mCat. 43.Leslie to MackayMackay 13.09 km0.5%63 mN/A