The Colorado Buffaloes football team has played their home games at Folsom Field since 1924. Located on the University of Colorado Boulder campus in Boulder, Colorado, it is one of the oldest collegiate stadiums in the United States. The stadium is named after Fred Folsom, a coach who was instrumental in building the school's football program. Here is an image of Folsom Field:

For more information about the stadium, you can visit the University of Colorado's official site.