Located about 15 miles North East of Index, WA, Blanca Lake is a beautiful turquoise coloured lake.  The drive from Seattle is longer than usual because the Index Galena Rd is washed out near Blanca Lake.  Instead we drove around via Beckler River Road.  From the trailhead, there is a series of steep switchbacks which quickly bring you out of the valley and reward you with views of nearby Glacier Peak.  From there, you decend past Virgin Lake about 3/4 mile until you get to Blanca Lake.  The best spots to get photos are off to the right where you can get views of Kyes Peak and the Columbia Glacier.