Originally formed as a narrow-gauge road running south from Denver, the Denver and Rio Grande Western grew to be one of the major railroads of the western United States. The Rio Grande became known for it's mountainous routes, which were used to good effect on it's passenger trains. The Rio Grande was also one of the few railroads not to join Amtrak in 1971, continuing to run it's Rio Grande Zephyr between Denver and Ogden, Utah, until 1983. The Zephyr was the last private, intercity train in the United States.
Eventually, the Rio Grande was absorbed into the Union Pacific monolith, along with it's partner the Southern Pacific. DRGW stuff is rare in the system now-a few locomotives are still running around, as well as some old freight cars. This is an old coal hopper, one of a string I spotted parked up in rural Illinois.