Chemist, that photo was from the Eagle Cap Wilderness in the Wallowa Mountains. It was a 10 for scenery. The trip I took was outlined in Douglas Lorain's, "Backpacking Oregon" book. The hike is the Wallowa River Loop (pages 124 - 129.) It was jaw 'droppingly' beautiful. There were amazing views of meadows, waterfalls, rivers, mountains and incredible lakes.
Amazon.com: Backpacking Oregon: From Rugged Coastline to Mountain Meadow (9780899974415): Douglas Lorain: Books
There are no roads into the Eagle Cap Wilderness, the only way in is to hike up to it or go in on horseback.