Locomotive 1673, a Mogul 2-6-0 type engine, was built by Schenectady Locomotive Works in 1900 and logged over 1,000,000 miles for the Southern Pacific Company, primarily in southern Arizona. In 1955 it was donated to the City of Tucson to mark the 75th anniversary of the railroad’s arrival in the community, and in 1992 it was listed on the National Register of Historic Places. The Southern Pacific Railroad reached Tucson on March 20, 1880, giving the community reliable access to the rest of the country for the first time and changing Tucson in many ways, from architectural styles to furniture and clothing, as it became a real part of the United States.