We're giving this page a facelift!Visit the previous versionto make edits.Peak Mountain 3Add photo Edit (TBD) Photo MapCopy LinkHomeUSACaliforniaSan Diego CountyNorth San Diego CountyRancho Penasquitos CanyonThumb BoulderHangnail LeftV2Lucah ThumbV2-3Hangnail RightV4boulderingFA unknownUPDATED BY vietnguyen DescriptionRoutes in Thumb Boulder1Hangnail LeftV2Bouldering2Hangnail RightV4Bouldering 3Lucah ThumbV2-3Bouldering