Crystal Lake in August 2010
|Location||Barton, Orleans County, Vermont, United States|
|Basin countries||United States|
|Max. length||3 mi (4.8 km)|
|Max. width||1 mi (1.6 km)|
|Surface area||763 acres (3.09 km2)|
|Max. depth||100 ft (30 m)|
|Surface elevation||968 ft (295 m)|
Crystal Lake is near the village of Barton in Orleans County, Vermont. It is a glacial lake 3 by 1 mile (4.8 by 1.6 km) and 100 feet (30 m) deep in places. Route 5 runs along the lake's western shore. Crystal Lake is in the northeast section of the state of Vermont. The lake is owned by the state and managed by the Department of Environmental Conservation.
The lake is a coldwater fishery. Lake trout are native and the current population is wild. There are rainbow trout (wild and stocked), yellow perch, smallmouth bass, rockbass, pumpkinseed, chain pickerel, longnose suckers, white suckers, and various minnow species.
Rogers' Rangers were forced to retreat through the area following their attack on Saint-Francis, Quebec in 1759. The fleeing rangers split up before getting to Barton. One group followed the Barton River south to the falls at the outlet of Crystal Lake where they were able to catch fish. From there, they continued south over the summit into the Passumpsic River Valley.
In the 19th century, the lake was sometimes called "Belle Pond."
Construction on a dam to enhance and control the lake was completed in 1860. It consists of concrete, stone, and masonry. The core is concrete. The foundation is rock, and soil. The height is 17 feet (5.2 m) by 65 feet (20 m) long. Maximum discharge is 1,700 cubic feet (48 m3) per second. The capacity is 6,740 acre feet (8,310,000 m3). Normal storage is 2,808 acre feet (3,464,000 m3). It drains an area of 22.5828 square miles (58.489 km2).
Around 1900, a granite quarry was located on the east side of the lake. Steamboats barged stone across to the west side.
The lake has two parks at the north end. The State Park started by the CCC during the depression but not completed until the 1940s. It is at the northwestern edge. It was added to the National Register of Historic Places August 30, 2005.
Adjacent to the state park, at the northeastern end, is Pageant Park, the Barton, Vermont town park.
- "Crystal Lake". findlakes.com. Retrieved 2018-03-21.
- [permanent dead link] retrieved August 9, 2007
-  Archived August 29, 2007, at the Wayback Machine retrieved August 9, 2007
- Darrell Hoyt (1985). Sketches of Orleans, Vermont. Mempremagog Press. ISBN 0-9610860-2-5., page 1
- History of Vermont: Natural, Civil, and Statistical 1853 accessed January 13, 2008
- "Barton, Vermont - Town History". Vermont Folklore, Myths, Legends, Ghost Stories & More. Retrieved 2018-03-21.