Sweetwater County Historical Museum

Established in 1967, the Sweetwater County Historical Museum is housed in a renovated 1931 post office building and contains a collection of several thousand artifacts, a large historical photograph collection, and local history research material.

Discover the rich cultural heritage of southwestern Wyoming at the Sweetwater County Historical Museum. Explore the stories of Native Americans, explorers, fur trappers, travelers of overland trails, railroad workers, coal miners, cowboys, sheepherders, homesteaders, business people, trona miners and oil and gas workers.

Several major emigrant trails passed through the county including the Oregon, California, Mormon, Overland, and Cherokee Trails, as well as the Pony Express Trail, 1861 transcontinental telegraph line and Ben Holladay's Central Overland Express stage line. Vitally important to the history of the county was the coming of the transcontinental railroad in 1868. This was instrumental in the creation and development of Sweetwater County's two major population centers, Green River and Rock Springs. Green River was the major railroad town due to the nearness of a water supply, while Rock Springs became the coal mining center of the county.