Terminus becomes Dillon in 1880

From the very beginning, when it was known as Terminus, Dillon was a railroad town and Beaverhead County was home to some of the most unusual and interesting railroads in the county, including the Utah and Northern (narrow gauge), later to become the Oregon Shortline (Union Pacific); The Gilmore and Pittsburgh (the mystery railroad), and the last common carrier narrow gauge railroad to be built in the United States, The Montana Southern. The Oregon Short Line/Union Pacific transition began in 1950 from Steam locomotive to Diesel locomotive. This period in time was a real watershed in history for railway operations.