Aurora is a city in Adams, Arapahoe, and Douglas provinces, north-focal Colorado, U.S. An eastern suburb of Denver, Aurora was the third most crowded city in Colorado toward the beginning of the 21st century. It was established amid the silver blast of 1891 and named Fletcher after its Canadian-conceived author, Donald Fletcher, and it thrived as a mining focus until 1893, when a silver frenzy shut the mines.
In 1902 Adams area was made from Arapahoe region, and the division line split the group, putting it in two regions; a segment of the present city likewise falls inside Douglas district. Fletcher was renamed Aurora in 1907. The city is fundamentally private yet has some light produces. It likewise is the site of Buckley Air National Guard Base.