Cedar Tree Wall is a fine climb found on the upper band of the Major Mass just south of the Devil's Doorway formation. Climb up the broken up crack and ledges. Don't use the tree behind you. Swartling's book calls it 5.4, but I'd say 5.6.
Standard Rack, some slings to sling the tree. Top rope setup is found by walking around the west side of the Devil's Doorway and setting up an anchor on the wall just south of the formation. To get to the base of the climb from the TR setup hike east along lower Devil's Doorway Trail, go up short set of steps just north of The Crypt (route 18). Once above steps turn right (east) and descend gully between the Major Mass and Minor Mass. Descend the gully about 20 yards and then turn right and climb through a saddle (4th class). Once through the saddle you'll be on the "upper-band ledge", a nice wide ledge used to access the upper band of the Major Mass (in Swartling's book this ledge is located above the area labeled "Angel's Traverse"). Hike west along the ledge about 150 feet until you're directly below the Devil's Doorway (you'll see it about 50 feet above you). Cedar Tree Wall is around the corner to the left of the wall you're facing. There is a tall tree at the base of the climb.