Denver has several additional professional teams. In 2006 Denver established a Major League Lacrosse team, the Denver Outlaws. They play in Sports Authority Field at Mile High. In 2006, the Denver Outlaws won the Western Conference Championship, and then went on to become 2014 MLL Champions, eight years later. The Colorado Mammoth of the National Lacrosse League play at the Pepsi Center.
State Highway 470 (C-470, SH 470) is the southwestern portion of the Denver metro area's beltway. Originally planned as Interstate 470 in the 1960s, the beltway project was attacked on environmental impact grounds and the interstate beltway was never built. The portion of "Interstate 470" built as a state highway is the present-day SH 470, which is a freeway for its entire length.