The easiest way to the top. Not a lot of climbing, but a few 5th class moves. Old Mansís wanders across the west face of Seneca.
1st Pitch Start at series of easy ledges that can be reached by going past Prune and other climbs along the trail. Climb up a couple of left facing corners. Climb the short chimney. Belay from tree and gear. 170 ft
2nd Pitch Go south across the needle covered ledge.
3rd Pitch Climb the short north facing corner that leads up to Traffic Jam Notch. Watch for a loose block and beware of people rappelling down from the notch.