| Fourth Connecticut Lake | |
|---|---|
| Location | Pittsburg, Coos County, New Hampshire, USA |
| Primary outflows | Connecticut River |
| Basin countries | United States |
| Max. length | 0.1 miles (.16 km) |
| Surface area | 1.8 acres (0.73 ha) |
| Surface elevation | 2,670 ft (810 m) |
| Settlements | Pittsburg |
The Fourth Connecticut Lake is the northernmost, smallest and most remote of the Connecticut Lakes in New Hampshire, United States of America. It is the source of the Connecticut River. The Fourth Connecticut Lake Trail, which criss-crosses the international border between the United States and Canada, leads hikers to the lake. The land surrounding the lake is owned by The Nature Conservancy.