Y-Crack Boulder, named for the prominent Y-shaped cleft on it's southern side, is located northeast of Pinnacle Peak proper and accessed from the main hiker trail via a spur climber's trail that takes you to the base of the formation. The impressive Y-Crack route, rated 5.9, is a memorable old school introduction to wide crack climbing. There are also some moderate face routes on the back (north) side of the formation and rappel bolts on the summit.
Hike up the tourist trail from the visitor's center (looks like a big smooth dirt golf cart path). Continue on past the climbers' trail to the peak and the trail will flatten out and head a bit down. Y-Crack will be seen off to the northeast. Take the climber's trail headed off in that direction to get to the formation.
Browse More Classics in Y-Crack Boulder
Mountain Project's determination of some of the classic, most popular, highest rated routes for Y-Crack Boulder:
Y Crack 5.9 Trad, TR, 1 pitch, 65 feet
Send it 5.10a Trad, 1 pitch, 45 feet
Featured Route For Y-Crack Boulder