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Rock Springs,city (1990 pop. 19,050), alt. c.6,270 ft (1,910 m), Sweetwater co., SW Wyo., on Bitter Creek; inc. 1888. It is a cattle and sheep shipping point and the center of large natural trona mines that produce soda ash. Oil and gas production, electric-power distribution, a revived coal industry, food processing, a chemical industry, and tourism are also important. Rock Springs is the gateway to many recreational areas and natural wonders, and an annual rodeo is held there. It was settled around a trading post and stage station established on the Overland TrailOverland Trail,
any of several trails of westward migration in the United States. The term is sometimes used to mean all the trails westward from the Missouri to the Pacific and sometimes for the central trails only.
..... Click the link for more information. in the 1860s.