Lake Chaffee is a small, shallow, man-made lake located approximately 2 miles (3.2 km) northwest of the hamlet of Westford in the town of Ashford in Windham County, northeastern Connecticut. The lake has an area of 54 acres (22 ha) and a maximum depth of 11 feet (3.4 m). Its average surface elevation is 856 feet (261 m) above sea level.