This is the obvious large boulder on the side of the trail heading to the climbing areas. There are several quality problems on this rock.
From the X-rock parking area follow the trail towards the climbing. Before reaching the Elementary Wall on the left there is a large boulder.
Browse More Classics in The Boxcar
Mountain Project's determination of some of the classic, most popular, highest rated routes for The Boxcar:
The Sickle V0 Boulder
East Face V3 V3 Boulder
Shark's Tooth V4 Boulder, 15 feet
The Hourglass V6 Boulder, 13 feet
Captain's Corner Sit V9 Boulder
Featured Route For The Boxcar