Union Pacific Corporation is a publicly traded railroad holding company. It was incorporated in Utah in 1969 and is headquartered in Omaha, Nebraska. It is the parent company of the current, Delaware-registered, form of the Union Pacific Railroad, and the company, along with Berkshire Hathaway-owned rival BNSF, has a near-duopoly on freight railroad transportation west of the Mississippi River.
Headquarters in Omaha, Nebraska
The Denver and Rio Grande Western Railroad, often shortened to Rio Grande, D&RG or D&RGW, formerly the Denver & Rio Grande Railroad, was an American Class I railroad company. The railroad started as a 3 ft narrow-gauge line running south from Denver, Colorado, in 1870. It served mainly as a transcontinental bridge line between Denver and Salt Lake City, Utah. The Rio Grande was also a major origin of coal and mineral traffic.
During the late 1800s the D&RG made extensive use of consolidations (engines with a 2-8-0 wheel arrangement). This drawing, of an unusual wheel arrangement, was titled "Standard Consolidation Engine," 1881.
Over the course of decades, D&RG consolidations were subjected to various modifications. In the 20th century, diamond stacks gave way to straight stacks, box headlights were replaced with round ones, decorative trim disappeared from the domes, and wooden pilots (cowcatchers) were replaced with steel ones.
D&RGW 5384, patch-renumbered into UP 8637
D&RGW passenger train at the Colorado Railroad Museum. The F9 A&B diesel electric locomotives (1955) were used for the California Zephyrs and Rio Grande Zephyrs.