North Chimney is a popular climb, and is the easiest and fastest way to reach the top of Castleton Tower. Although rated easier than Kor Ingalls (5.9), it is slightly more sustained in nature and might feel a little more committing, with more loose rock and no rap anchors past the first belay. The first pitch of North Chimney is one of the best of it’s grade in the desert and shouldn't be missed. Although the route ascends a prominent chimney system and appears to be very wide, the climbing is mostly jamming from fingers to hands with one short chimney section. Althought the chimney section has a bolt, it is old and should not be trusted. Bringing a big cam to back it up is a good idea. Overall, this climb protects very well, but it has a fair bit of loose rock and moving blocks/flakes. North Chimney is a great alternative if Kor Ingalls is busy.

North Chimney is a relatively short climb, and stays in the shade most of the day. It's a good choice on a warm day, but can be extremely cold on a windy winter day. Because of the rockfall potential, try to avoid climbing below another party and wear helmets. Come early and be ready to climb something else if it's busy. Good nearby alternatives include Kor Ingalls (5.9), Fine Jade (5.11a) and Honeymoon Chimney (5.11b or 5.9 A0). These climbs are located just a few minutes away from North Chimney, and it's not too difficult for a competent party to climb two routes in a day.

Note that free campsites and wag bags (donation box) can be found at the trailhead to Castleton Tower. No water or toilets are available, and the space is limited. Thanks to The Castleton Tower Preservation Initiative, Utah Open Lands (UOL) and the Access Fund. Please respect and protect the integrity of Castleton Tower and its surrounding landscape.