The Vermont Lake Monsters are a minor league baseball team in the Short-Season A class New York–Penn League affiliated with the Oakland Athletics. The team plays its home games at Centennial Field, one of the oldest stadiums in minor league baseball, on the University of Vermont campus in Burlington, Vermont. The team was located in Jamestown, New York, (as the Jamestown Expos) from 1977 to 1993, and was an affiliate of the Montreal Expos/Washington Nationals from its founding until September 2010, when it became an Athletics affiliate.