L to R R to L Alpha
A good route, and particularly good for a chimney. The route is cleaner than most chimneys, employs many techniques and protects reasonably well. Climb up it to the top of the wall.
From the approach, arriving below the Cruisemaster dihedral, go left out around a blunt corner and come into a left-facing Open-Book corner with some cracks a meter or so apart (Ralph and Bob's, 5.7) and continue a short while further past a large overhang and to this obvious chimney.
A standard rack from fingers to fist. Cracks and a fixed sling provide protection opportunity for this climb. Longer runners won't hurt!