Bridge Mountain Annex, West Face, Zion National Park. North of and adjoining Bridge Mountain is a smaller, 1000-foot shoulder, the Annex. Mike Wies and Andy Carson climbed a route to the right of the center of its west face in January 1973. After three pitches of free climbing in an immense dihedral that ends 400 feet up in a large ledge, they proceeded into a 200-foot chimney. At the rear of the chimney are two more chimneys, of which they climbed the right one. At the top of the chimney, which ends in a pedestal, a large sinuous crack goes to the summit block. Another crack 30 feet to the left provided a free and an aid pitch to the summit block. They did not climb the rotten summit block but went around to the right and descended. NCCS IV, F7, Al.