This classic climb was the centerfold of Yvon Chouinard's book "Climbing Ice." Sustained climbing throughout, with high crux.
From the Pine Creek trailhead, follow the trail half a mile to the bridge, where the climb comes into view ahead on the right. Continue a quarter mile to where both the Green and Blue Gullies can be seen. Look for tracks heading off the trail shortly after the Wilderness Boundary sign. Follow the tracks, or make your own, and cross the river. Head up the large talus field or snow field, depending on the time of year, to the base of the climb. The Green Gully is the Larger one on the right, and is easily distinguished by its green color. Plan on 45 minutes to an hour for the approach.
Standard ice rack. I've heard rumors of early season ascents requiring a piton or small rock pro. If it has recently snowed, it may be difficult to find the anchor, which is immediately at the top-out, climber's right, on top of a large block.