This shot is only 36 miles west of Denver Union Station, yet we are deep in the Colorado Rockies. We are at the west end of the "Tunnel District" with the Zephyr passing through the shortest tunnel in the Tunnel District, Tunnel 29. The tunnel is only 75 feet long...shorter than a Superliner! When riding, we always joke that it is the tunnel that if you blink, you'll miss it. The Zephyr has been following South Boulder Creek since Tunnel 8 (about nine miles), but only here is the elevation of the creek and the tracks starting to get relatively close to one another. I included a second shot from a higher perspective that show the Zephyr a bit further west, heading toward Cliff and the Continental Divide. Yours truly is also in this second shot...you can see my perch atop a rocky, controlling the drone and watching the Zephyr snake along the creek below me.