Museum of the Yellowstone
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In 1908 the Union Pacific railroad introduced train service to Yellowstone National park. The town site grew up at the terminus of the U.P. rail line to the west entrance, first called Riverside in 1908 changed to Yellowstone in 1909 and finally West Yellowstone in 1920. West Yellowstone has become the most popular starting point for most visitors' trips into Yellowstone National Park.