The Denver Tramway, operating in Denver, Colorado, was a streetcar system incorporated in 1886. The tramway was unusual for a number of reasons: the term "tramway" is generally not used in the United States, and it is not known why the company was named as such. The track was narrow gauge, an unusual gauge in the United States (although streetcars in Los Angeles also used this gauge), but in general use by railways in Japan, southern Africa, New Zealand, and Queensland, Australia. The tramway made use of a variety of types of streetcars, including conduit cars (until 1888), cable cars (until 1900), and trolley cars (until 1950). At the height of its trolley operations, the tramway owned more than of track and operated over 250 streetcars. By the end of trolley service, only 64 streetcars were still in use. After streetcar operation ceased in 1950 the tramway operated trolley coaches and conventional buses, but continued to use the Tramway name. In May 1971, the Denver Tramway Corporation ceased operation of Denver's transit system, selling its assets and operations to the City and County of Denver. The city continued those operations under the name Denver Metro Transit until 1974, when they were assumed by the voter-approved Regional Transportation District (RTD). History Precursor to Denver Tramway In 1867 the Denver Horse Railroad Company was incorporated and given "a period of thirty five years the sole and exclusive right and privilege of constructing a horse railroad in the city of Denver and the additions thereto." In 1871 a horsecar line was finally built in West Denver, from Seventh and Larimer to the Five Points neighborhood, opening December 17. The Denver Horse Railroad Company was renamed the Denver City Railway Company in 1872. By 1877 the company employed eighteen men, had thirty-two horses and twelve cars. In that year it carried 392,420 passengers over its eight miles of road. In 1883 Denver City Railway Company changed hands. The railway was expanded and much of the old track was relaid with heavy steel rails. Clyde Lyndon King, in his doctoral thesis The history of the government of Denver with special reference to its relations with public service corporations, writes, "by the opening of the second half of the period, Denver's street railway service was as good as that in any city of its size." Land speculators, not served by the existing railway and believing that