Same approach up to Castleton from the climbers campground as for Kor-Ingals. This route climbs the obvious chimney around the corner, on the east side, from the North Face.
Pull the boulder moves on the north side of castleton to gain the ledge that circles the entire tower. Once on the ledge, walk clockwise around the tower to the east face.
Pitch 1: This pitch has it all...great rock, fun jams up splitter hand cracks, excellent feet, unusual pockets, and bomber gear. Climb double cracks up to the base of the chimney (5.9- 130 feet). Crux comes on the bulge 20 feet from the top.
Pitch 2: Continue up chimney another 140 feet (5.9-). Cux comes down low on the offwidth moves 20 feet above the belay. An older star drive "bolt"(nail) protects the moves but a #5 camalot would make you feel more comfortable. Above offwidth, continue jamming up broken rock/cracks to an old anchor (2 pitons). Use care when selecting holds to pull on in this pitch. The rock is kind of chossy and broken up (runners?).
Pitch 3: Climb easy cracks in chimney (5.7) up to the big ledge between Castleton and detached pillar (60 feet). Build a belay (gear) here or combine with next pitch to the summit.
Pitch 4: Same pitch as for Kor-Ingals. Fun face climbing and liebacks lead to the bolted anchors atop Castleton (5.7, 40 feet).
Rappels: Double rope rappels down Kor-Ingals or North Face.
2 -3 sets of cams from #1.5 friend to #3.5 friend (.5 camalot to 3 camalot). Take more in the # 3 and # 3.5 sizes. (1) #3.5, #4, and #5 camalot are very helpful.
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