Scramble up onto the grassy ledge on the south side of the 4th above the apple tree. Start up the large, right-facing corner, and stay to the left through the bulge (3" cam). Continue up the obvious, right-facing dihedral to about mid-height where a thin, steep, difficult-to-protect 5.9++ crux is encountered. This is heady and bold! Stay in the classic corner to its top. After much scrubbing and trundling (thus the name), this line is cleaning up nicely....
Thin gear to 3".