The pavilion is part of the Brother U. Albert Rahill Activity Center. Also in the Center are the Madigan Gymnasium and the St. Mary's Stadium. The McKeon Pavilion is named after George R. McKeon. He was a principle donor for the pavilion as well as a former member of the college's Board of Regents. Other donors are listed on plaques in the lobby.
The McKeon Pavilion is the home for St. Mary's College men's basketball team, St. Mary's College women's basketball team and St. Mary's volleyball teams. You cannot brings food, beverages, cans, bottles, coolers, airhorns, noisemakers, video cameras, audio recorders or any kind of weapon into the pavilion.