Sickle is a great exposed arete climb with some airy, thought provoking moves. Be careful of the Poison Ivy which is ubiquitous. Also tread carefully on the mosses and vegetation which appear to be very sensitive. For the amount this is climbed the rock is very good, with only a little lichen growing on it.
Follow the approach to the Cathedral Spires, but turn left off the trail instead of right. You will want to hike until the trail flattens out for about 100 yards and then wander over to your left. The 5.3 route on Sickle starts on the Northeast side, so you have to walk around the back of the Picket Fence to get to the base.
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Mountain Project's determination of some of the classic, most popular, highest rated routes for Sickle:
Conn Route 5.3 PG13 Trad, 1 pitch, 180 feet
Featured Route For Sickle
Conn Route 5.3 PG13 SD : Custer State Park : ... : Sickle
The route is rated 5.3, but one must keep in mind that this rating is from Touch the Sky, and may seem a tad underrated (Mark Schwartz and I both thought 5.5 would be a fair rating). There are two distinct cruxes when coming to a small headwalls and having to move from one formation to another. ...[more] Browse More Classics in SD