I'm planning a road trip as a college graduation for my little sis. I currently live near Seattle. Our plan is to start from here and swing around the Olympic Peninsula. From there, we're going to take the coast all the way down to Santa Barbara. From there, go east thru Vegas to Salt Lake City. From Salt Lake, we're planning on going thru Yellowstone and Glacier up to Calgary. Then we're going to go west to Vancouver and then back to Seattle.

I'm looking for recommendations on sights to see, best scenic routes, etc. We're planning on taking at least 2 weeks to complete the trip. Any help would be much obliged.