Info from Wikipedia
Foxboro Stadium, originally Schaefer Stadium and later Sullivan Stadium, was an outdoor stadium in the New England region of the United States, located in Foxborough, Massachusetts. It opened in 1971. Foxboro Stadium was demolished in 2002 and replaced by Gillette Stadium and the Patriot Place shopping center.
Map location is approximate and based on the position of the old stadium in relation to the new that can be seen in the aerial picture on the Wikipedia page.