Pine Tree is somewhat of a nemesis at the grade for many and a favorite to others. Though it is a crack climb, it is not very straightforward, and you might do well to keep an eye out for some foot holds on the face. Lots of jamming and some odd undercling jams will get you to my favorite jug at Cathedral at about halfway. Continue up some much more straightforward climbing to a root that leads to the top. At that point you can decide your ethics on grabbing the root or avoiding it.
Pine Tree is highly recommended for its interesting moves and awesome exposed positioning.
Right above the route Thin Air (5.6), there is a face with a few cracks that look like they need to be climbed. The one on the right, the wider one, is Pine Tree Eliminate.
Standard rack. Pine Tree is well protected all the way. Belay from trees at the top.
I've seen it done with lots of cams, and I've done it with only nuts.