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 3 ft 6 in (1,067 mm) 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.