Surprise Mountain is right off of Section J of the Pacific Crest Trail #2000 in Washington. We were hiking south from the Steven’s Pass trailhead and camped at Deception Lakes - about 17.5 miles from the trailhead. From that point, it is only 1.3 miles and a 1300’ gain up the Surprise Mountain Trail #1063 to the summit. Following the horse camp signs along a very well maintained trail got me on the right path.