Where are the headquarters of the league the Denver Pioneers play in?
Summit League The Summit League, or The Summit, is an NCAA Division I intercollegiate athletic conference with its membership mostly located in the Midwestern United States from Indiana and Illinois on the East of the Mississippi River to the Dakotas and Nebraska on the West, with additional members in the Western state of Colorado and the Southern state of Oklahoma. Originally dubbed the Association of Mid-Continent Universities in 1982, on June 1, 2007, the conference changed its name from the Mid-Continent Conference. League headquarters are in Elmhurst, Illinois.
2011 Colorado Mammoth season The Colorado Mammoth are a lacrosse team based in Denver, Colorado playing in the National Lacrosse League (NLL). The 2011 season was the 25th in franchise history and 9th as the Mammoth (previously the Washington Power, Pittsburgh Crossefire, and Baltimore Thunder).