WorldwideUnited StatesMarylandBaltimore CountyBlack Rock RoadWorldwideUnited StatesMarylandBaltimore CountyBlack Rock RoadCycling Climbs in Black Rock Road There are 2 cycling climbs in Black Rock Road.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.TNTT Last Hill0.51 km5.5%28 mN/A2.Black Rock Climb to Mt. Zion0.41 km5.4%22 mN/A