On day 3 of an Oregon road trip, my friend Nate and I climbed the South Face gully route on BT. Although technically easy (low 5th class), this route crosses over the sketch rock of BT's crater rim.
Expect incredible views down the insane northeast face of the mountain and down the more moderate east face to the Bend glacier. There are also great views of the impressive east face of the west peak--any takers? Kinda looks like something in Canada, but more scheisty. Accessed from the BT trailhead, this route took 7 hours round trip. We moved pretty slow along the rim, and could see people on the summit for quite a while before we finally topped out. At one point we actually crossed over a window (hole/arch) in the ridge! The descent was uneventful, involving a downclimb of the step on the NW ridge route. We jogged down the scree of the nw face, and hiked 1/2 way around the peak to the car and some warm PBRs.