3-4 Day Trip in Oregon

What does "not too hard" mean? More than 1,000 foot gain in elevation per mile? Do you plan to set up a base camp w/day hikes, or are you going to backpack the entire 3-4 days? One of the most beautiful hikes in Oregon is the Obsidian Trail in Three Sisters Wilderness. You could easily spend 3-4 days exploring this area. A permit is required for overnight trips, which can be obtained from the Forest Service. It's a means for them to control the amount of people in this area. Here's a link to our photos from that trip: http://www.flickr.com/photos/brett4man/sets/72157601914038005/