In the Los Pinos river canyon heading toward Cascade Creek, one of the train crew is treading the roof walk.
Cascade trestle was the location of photo run-by #2; guessing by the shadows this is maybe a bit past noon.
In the canyon before the loop around Osier, more train crew are on the tender/doghouse.
Heading into Phantom Curve past the Toltec section house site, the single concession car is on the end of the train, while on top the train crew enjoy the sights.
Phantom Curve was the site of photo run-by #3.
Part 5 is next...