Amtrak’s eastbound California Zephyr drops downgrade at milepost 23 between Plain and Eisele at Coal Creek, Colorado, on the afternoon of April 14, 2019.
Two Amtrak routes serve the Centennial State. The California Zephyr's route through Moffat Tunnel and along the Colorado River goes from one end of the state to the other. The Southwest Chief cuts across the southeast corner.
