Overland Route (Union Pacific Railroad)

The Overland Route was a train route operated jointly by the Union Pacific Railroad and the Central Pacific Railroad/Southern Pacific Railroad, between the eastern termini of Council Bluffs, Iowa, and Omaha, Nebraska, and the San Francisco Bay Area, over the grade of the first transcontinental railroad (also called the "Pacific Railroad") which opened on May 10, 1869. Passenger trains that operated over the line included the Overland Flyer, later renamed the Overland Limited, with its eastern terminal in Chicago.

Source: Wikipedia — Overland Route (Union Pacific Railroad) (CC BY-SA 4.0)