Some old Super-8 film footage of the NWP by Mark Drury on Youtube. It was posted 2010, so you may have seen it. Part one is unfortunately missing.

I'll post the links:

(Part 1 was censored by Youtube for reasons unknown -- perhaps music copyright.)

Part 2. https://www.youtube.com/watch?v=klZDAvs_uRY
- A "typical" rolling meet a Fort Seward. Trains were sometimes longer than the 7000' siding, he says.
- A loaded westbound leaves Willits and heads over the summit. Helpers cut in 2/3 of the way back.
- Second to last train out of Sausalito with Sterling Hayden's wooden private car.

Part 3. https://www.youtube.com/watch?v=tZthCx6eJsg
- Riding an empty eastbound up the Russian River canyon. "Terrel Pennington's last run."

Part 4. https://www.youtube.com/watch?v=bGhBg9zNNho
- Same train as in Part 3.
- Six units blast uphill.
- One of the crew tells a funny story about a "rail nut" named Mike Pechner!
- The crew curses out a "jogging son of a b_tch" running down the tracks.