Las Vegas' birthday is celebrated on May 15, as on that date in 1905, 110 acres of land situated between Stewart Avenue on the north, Garces Avenue to the south, Main Street to the west, and Fifth Street (Las Vegas Boulevard) to the east, were part of a two-day auction by the railroad company. The completion of the San Pedro, Los Angeles & Salt Lake Railroad, linking Southern California with Salt Lake City, established Las Vegas as a railroad town. The availability of water made Las Vegas an ideal refueling point and rest stop. There was a second townsite with lots that J. T. McWilliams put up for sale in January, 1905. This site was west of the railroad tracks and is now part of what is known as the Historic Westside.