Twin Sisters, Northwest Face of South Twin. On June 13, Reed Tindall and I completed a new route on the northwest face of this 6932-foot peak, highest point in the Twin Sisters Range, located 10 miles southwest of Mount Baker. The 900-foot face was ascended in about 10 leads over class 3 and class 4 rock. One 60-foot pitch involved climbing 45° to 50° snow about three-fourths of the way up the face. The climb up took about seven hours from Dailey Prairie.
Dallas Kloke, Skagit Alpine Club