I am looking at doing this trip the end of June. The trip out to the West Coast, I have nailed, as well as, the trip from SanFran to Colorado. Mainly my questions are focused on the ride from Portland to SanFran. It will be a quick trip....probably 2 days, so most of our viewing will be from the seat of the bike. But, does anyone have any suggestions for the route or sites we must see?