Amtrak's westbound California Zephyr (train no. 5) has just exited the first of 29 different tunnels on the Eastern side of the Divide and approaches Plainview, CO on their way west

AMTK P42DC No. 171 is on point of the California Zephyr as it passes through Leyden, Colorado heading up into the Rocky Mountains

Amtrak #5 screams around the Lisle curve as an eastbound coal drag roars past on main 3.