We're giving this page a facelift!Visit the previous versionto make edits.Peak Mountain 3Add photo Edit (TBD) Photo MapCopy LinkHomeUSASouth DakotaCuster State ParkGrace BasinTwin Planets Boulders, TheV0 AreteV0-IntergalacticV2-3Space InvaderV4boulderingFA unknownUPDATED BY vietnguyen DescriptionRoutes in The Twin Planets Boulders1V0 AreteV0-Bouldering2Space InvaderV4Bouldering 3IntergalacticV2-3Bouldering4Danger ZoneV1Bouldering5Close EncountersV6-7Bouldering6E.T.V9-Bouldering7Rim Of UranusV1Bouldering