shows the gully at the west end of the lake. From the Summit Lake parking area, hike northwest to the north end of the lake. Turn left and follow a trail that runs southwest along the side of the lake. When the trail starts down to the lake, stay on the hillside and continue straight towards the gully at the end of the basin. If you stay far enough up from the lake, you will not lose any elevation by the time you get to the base of the gully. 2
is the view of the gully from the west side of the lake. In summer, the gully is filled with loose, red/brown debris and some large boulders - 3
. There will be a cornice on top and it's obvious that the upper third of the gully is steep - 4
At 13,000', put on your helmet and begin the ascent. The lower gully contains large boulders that may make your climbing easier. Near 13,400' you are nearing the cornice and the steepest portion of the climb - 5
. Stay right and carefully climb to the edge of loose ledges. Stay right of the cornice and climb the final 50 feet. Once you're past the cornice, the slope eases immediately and you hit the saddle just below 13,600'. Mt. Spalding (13,842') is to your right and your route to Blue Sky is left (south).
Turn left and hike south up toward the west end of Blue Sky's West Ridge
. There should be cairns and trail segments in this area. Continue toward the initial hump on the ridge and to a notch in the ridge just before the hump. Drop to the right slightly and follow the cairned trail east below the ridge crest. The trail stays below the ridge for most of the remaining hike to the summit. From the hump on the west end of the ridge, it's almost 1 mile to the summit. Hike to the corner of the Mt. Blue Sky road and 100' to the summit. Descend back to Summit Lake via the West Ridge Route, over 13er Mt. Spalding.