WorldwideSpainCastile and LeónRetortilloEl SierroWorldwideSpainCastile and LeónRetortilloEl SierroCycling Climbs in El SierroThere is one cycling climb in El Sierro.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Alto del Sierro2.3 km4%93 mCat. 4