Fourmile Canyon
United States
Fourmile Canyon or Four Mile Canyon is a mountainous canyon in western Boulder County, Colorado that channels a stream known as Fourmile Creek or Four Mile Creek (this is not Fourmile Canyon Creek which runs a few miles north of Fourmile Creek).). The stream rises at 40.048°N 105.550°W / 40.048; -105.550 on the southern slope of Niwot Mountain, before flowing east and south through the unincorporated communities of Sunset, Wallstreet, Salina and Crisman to the confluence with Boulder Creek at 40.015°N 105.324°W / 40.015; -105.324 in Boulder Canyon, four miles west of the historic location of the Boulder Railroad Depot. The canyon and surrounding area were the site of an eponymous major wildfire in September 2010.
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