This map shows a few areas, included is Fat Mans Pass three boulder problems climbed by Marty Karabin and Mike Covington in 2005. V4 Fat Mans Boulder - SDS heucos, climb left onto big boulder with razor crack, classic South Mountain slick top out. V0+ Slimfast Traverse - SDS traverse left slick wall to boulder walk off. V2 Underbelly - bottom of slabs, SDS follow rail to top.