We're giving this page a facelift!Visit the previous versionto make edits.Peak Mountain 3Add photo Edit (TBD) Photo MapCopy LinkHomeUSAColoradoGrand Junction AreaMcInnis Canyon BoulderingOpal HillPetrified HillMammoth BoulderMammoth SpineV0-1boulderingFA unknownUPDATED BY vietnguyen DescriptionRoutes in Mammoth Boulder1Mammoth SpineV0-1Bouldering