Rock Springs is another of the southern Wyoming towns on the Union Pacific's transcontinental line. US Hwy 191 connects at Rock Springs north to serve Grand Teton and Yellowstone National parks. Rock Springs is known as the home of 56 nationalities; a true melting pot. Rock Springs offers a variety of recreational opportunities for visitors and residents alike. Established in 1888 as a mining town, the natural resources around the area are the driving force behind the economy.