Amtrak’s westbound California Zephyr follows the Colorado River through rugged Gore Canyon as it approaches Azure, Colorado, on September 20, 2023. The train is about to enter 100-foot Tunnel 38... (more)
A pair of UP units leads a short eastbound covered hopper train across South Boulder Creek on the main at Cliff. The tracks follow South Boulder Creek for another ten miles or so on the way east t... (more)
With the destination of the skyline of Denver, Colorado in the upper left, UP 6454 (AC4400CW) leads an officer's special through Big Ten Curve as comes down the Moffat Tunnel Sub.