HomeUSASouth DakotaCuster State ParkSylvan LakeOutletsRobknob SpireSlob the Knob5.9+Bragg-Goldstone5.10+5.8tradFA Mark and Beverly Powell, Aug 7, 1965.UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Robknob Spire1Slob the Knob5.9+Trad2Powell Route5.8Trad 3Bragg-Goldstone5.10+Trad4Bobbin' For Lap Apples5.10+Trad