This is a shot that I've imaged trying to get before, but never actually thought I'd get the chance! At first, the picture may not appear to be anything particularly special. The eastbound Zephyr coming through Little Ten Curve on the main at Rocky. But if you look again, toward the top of the shot, you'll see the westbound Zephyr exiting Tunnel 1 on its way west.
The eastbound Zephyr here is running almost 16 hours late and the two Zephyrs met at Eisele (Clay). After a quick meet, the eastbound Zephyr was at Little Ten at the westbound Zephyr departed Tunnel 1 on the approach to Plain.