The field, located on Arch Street, was constructed in 1948[1] and has served as the home of the Keene Swamp Bats of the New England Collegiate Baseball League[2] since the 1997 NECBL season.

The field is part of the athletic facilities at Keene High School[3] and is owned by the Alumni Association.

The football, soccer, and track & field teams of Keene High School also use the facility.

The third section is located behind home plate, a pair of smaller uncovered bleacher seating structures.

[4] The following is a list of Swamp Bats attendance figures at Alumni Field dating back to the 2001 season.