Crystal Lake, a glacial lake near Barton in northeastern Vermont, has long been both a natural resource and a public landscape. In 1759, part of Rogers' Rangers retreated past its outlet after the attack on Saint-Francis. Known at times in the 19th century as Belle Pond, the lake’s level was altered by a dam completed in 1860. Around 1900, a granite quarry on the east side used steamboats to move stone across the lake. Today it is state-owned and managed, supports native lake trout along with other fish species, and includes public parks at its north end, including a state park later listed on the National Register of Historic Places.