We're giving this page a facelift!Visit the previous versionto make edits.Peak Mountain 3Add photo Edit (TBD) Photo MapCopy LinkHomeUSAColoradoFort CollinsLory State ParkArthur's RockMain AreaSister BoulderBlokky BehindV1-Blokky TraverseV1boulderingFA Cyril MulthaufUPDATED BY vietnguyen DescriptionRoutes in Sister Boulder1Blokky TraverseV1Bouldering 2Blokky BehindV1-Bouldering3Left Face - Left SideV0Bouldering4Sister Boulder - Left FaceV-easyBouldering