With the arrival of the Denver and Rio Grande Western Railroad (D&RGW) in 1881–82, Helper began to develop as a population center. By 1887 the D&RGW had erected some twenty-seven frame residences, with more built later in the year. The railroad planned to make Helper a freight terminal after the rail lines were changed from narrow to standard gauge. The changeover process began in 1889 and was completed in 1891. In 1892, Helper was designated the division point between the eastern and western D&RGW terminals in Grand Junction, Colorado, and Ogden, Utah, respectively, and a new depot, hotel, and other buildings were constructed.