| Tully Lake | |
|---|---|
 Tully Lake | |
| Location | Royalston, Massachusetts |
| Coordinates | 42°38′40.7″N 72°12′56.4″W / 42.644639°N 72.215667°W |
| Construction began | 1947 |
| Opening date | 1949 |
| Construction cost | $1,600,000 |
| Operator(s) | USACE |
| Dam and spillways | |
| Impounds | Tully River |
| Reservoir | |
| Creates | Tully Lake |
| Total capacity | 6.6 billion US gallons (25,000,000 m3) |
| Surface area | 1,262 acres (5.11 km2) |
| Normal elevation | 636 ft (194 m)[1] |
Tully Lake, of Royalston, Massachusetts, is a 1,262-acre (511 ha) reservoir and flood control project constructed by the United States Army Corps of Engineers (USACE) in 1949 for 1.6 million dollars. The project prevents flooding of the greater Connecticut River and Millers River valleys and provides a variety of recreational opportunities, including a campground operated by The Trustees of Reservations. Tully Lake is an important link in the 22-mile (35 km) Tully Trail.