Bill, Brad and I took Amtrak to Portland, rented a car, and headed east along the Columbia and Snake rivers.  We spent the next three days mostly chasing trains on the old SP&S, and the last afternoon at the UP's Joso bridge.  We had been to Joso before several times, but it is one of those iconic locations that you can go back to over and over looking for different angles and different lighting, waiting hours for a train, and being eternally grateful when a train finally comes.