Commerce City, Colorado, in Adams County, attracts outdoor enthusiasts, history buffs, sports lovers, and weekend duffers who enjoy 840 acres of parks and open space and 25 miles of trails that connect to local and regional routes. Located north of Denver, it is the eighteenth most populous municipality in Colorado, with about 46,000 residents.
Colorado is in the Mountain West subregion of the U.S. It spans 104,094 square miles, of which 376 square miles are water, and shares borders with Wyoming, Nebraska, Kansas, Oklahoma, New Mexico, and Utah, and touches Arizona at the Four Corners. It is the 21st most populous, with about 5,773,700 residents. Denver is the capital and most populous city.