Castle Tower. The first ascent of this beautiful 400-foot high sandstone tower near Moab was made on September 15 and 16, 1961, by Layton Kor and me. The route follows a crack and chimney system in a right- angle dihedral on the southeast corner. The climbing varies in difficulty from lower to upper fifth class. A very tight exposed chimney makes the third lead the most difficult. The summit is flat and spacious. The sandstone on this tower, unlike most desert towers, is hard and reliable. The only dangerous feature of the climb is several loose blocks in the lower part of the chimney on the third lead. These should be removed by the last man on the next ascent.