Day hike and climb from Harbor Lake camp. Left trail into Airplane Lake at switchback and went cross country to tarn. Began scramble just beyond tarn to the ridge. Tricky class 3 in a couple spots near the summit. New register was placed on 7/6/13 and had about 4 sign ins total. Original register also included, has earliest signature date of 192x by Myers out of New Plymouth, ID.
We packed out the next morning from Harbor, dropped packs at turn off to Welcome Lake, and day hiked to Terrace Lakes Overlook above Heart Lake - this was equally stunning! The Crags campground was deserted both coming and going, with Chris, the very nice camp host. Beware, the Boy Scouts descend on this area later in July and transform the area's ambiance as you might imagine. Rachel, Harry and crew were Forest Service staff doing an excellent job maintaining trails, signage and pointing out hidden splendors on the map. Trailhead offered color copies of a nice overview topo map.
I've nicknamed the Crags "Idaho's Little Yosemite" for obvious reasons. Wild country, and thanks to CCC in the 30s for building these incredible (blasted into granite cliffs in places) trails to make it accessible by foot.