WorldwideUnited StatesNorth CarolinaYadkin CountyOld US Highway 421WorldwideUnited StatesNorth CarolinaYadkin CountyOld US Highway 421Cycling Climbs in Old US Highway 421 There are 3 cycling climbs in Old US Highway 421.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Flint Hill Rd(Baltimore Rd-Main St)15.62 km0.7%102 mCat. 42.Old US 421- Logan creek to Shacktown4.04 km1%39 mN/A3.Forbush Creek Climb1.64 km2%33 mN/A