Ice Nine starts on the right portion of Ninety Foot Wall about 20 feet left of the big cedar. It begins at the same spot as Lightning Bolt in a right-facing dihedral under a very obvious roof about 30' feet up.
Ice Nine skirts to the right of the roof by following a diagnol crack from the dihedral towards the flake on the right side of the roof. This is the toughest part. Past the roof, jog up and left to avoid the more-difficult (~10d) line, then cut back right towards the top anchors to finish.
Usually Top-roped, this climb could be led with a rack of cams for protection.
Shares top-anchor bolts with many other routes nearby, bring a long sling and consider some large cams for a backup.