Old Pueblo Trolley is a non-profit, educational corporation based in Tucson, in the U.S. state of Arizona, that is dedicated to the preservation of Arizona's mass transit history. The name also commonly refers to the heritage streetcar line which OPT began operating in 1993, on which service is currently indefinitely suspended. OPT consists of three divisions that each fill a specific role in preserving the state's mass transit history. The divisions are the Street Railway Division, Motor Bus Division and the Museum Division (Southern Arizona Transportation Museum). Old Pueblo Trolley's streetcar line opened in 1993. The trolley last ran on October 31, 2011, when service was suspended for construction of the Sun Link modern-streetcar system. Operating on Friday, Saturday, and Sunday, Old Pueblo Trolley ran on just over a mile of single-track line recovered from Tucson's original street railway. From its south terminus at 5th Avenue and Broadway Boulevard the trolley ran north on 4th Avenue before heading east on University Boulevard to its terminus at Tyndall Street, just west of the University of Arizona Main Gate. History Tucson's original streetcar system Electric streetcars began operating in Tucson on June 1, 1906, and replaced the horse- and mule-drawn cars as a mark of Tucson's "modernity". The event drew quite a crowd including the mayor, L.H. Manning and C.K. Durbin, owner of the new line. The Tucson Citizen ran an article "Electric Cars Running in Old Pueblo" in its Friday, June 1, 1906 edition. It reported that two new electric cars left the corner of Stone Avenue and Congress Street at 2:00 p.m. for the University of Arizona filled with dignitaries and invited guests while an orchestra played a few tunes at the corner. The return trip was to Elysian Grove via Seventeenth where Emanual Drachman provided seats and refreshments for the banquet that followed. One car wore the banner, "The Goods Are Delivered L. H. M.", demonstrating that Mayor Manning had come through on his campaign platform to "promote and establish an electric streetcar system." Hence, Tucson was brought up to date, into the electric transportation era. Streetcars ran for the last time on December 31, 1930, and were replaced by buses. The heritage streetcar line Revival of the line began as the dream of Ruth Cross, director for the University of Arizona's Centennial Celebration in 1983, to see the historic streetcars returned to the Old Pueblo for the University's