The Sweetwater County Historical Museum is celebrating the anniversary of the U.S. Army’s 1919 transcontinental motor convoy. It was a crossing from Washington, D.C., to San Francisco — This journey sparked the idea of America's Interstate Highway System.

Sweetwater County is remembering the journey at their museum because it passed through Sweetwater County.

The goal was to test equipment and determine the feasibility of motorized cross-country travel. Eighty-one vehicles and trailers made the journey. This included trucks of all size, water tankers, mobile machine shops for when things broke down, an artillery wheeled tractor, as well as cars and motorcycles. One of the officers in the convoy was future U.S. president, 29-year-old Lt. Col. Dwight D. Eisenhower.

At the time, what were called roads, were more like ruts across the landscape.

The convoy departed Washington on July 7, 1919, and arrived in Wyoming August 8. In Cheyenne, the men were treated to a rodeo at Frontier Park. On August 13, the convoy reached Sweetwater County.

Find out more at wyohistory.org/encyclopedia/eisenhowers-1919-road-trip-and-interstate-highway-system.