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.
Boise Pilots The Boise Pilots were a minor league baseball team in the western United States, based in Boise, Idaho. They played in the Pioneer League for a total of 11 seasons between 1939 and 1954. They were unaffiliated with any major league team, and played at the Class C level. Their home venue was originally named Airway Park in 1939, and in 1952 was renamed Joe Devine Airway Park.