Echo Lake is located in the town of Charleston in Orleans County, Vermont within a region known as the Northeast Kingdom.

[1] The first Surveyor General of Vermont, Whitelaw, gave it the name of Echo Pond because when any sound was produced in its vicinity it was reverberated in various directions, producing a series of echoes.

The freshwater lake covers 530 acres (2.1 km2) and is 1.5 miles (2.4 km) long and 0.75 miles (1.21 km) at its widest; its maximum depth is 129 feet (39 m).

[1] The coldwater fishery at Echo Lake offers rainbow trout, brook trout and lake trout (both wild and stocked), as well as landlocked Atlantic salmon that have travelled from nearby Seymour Lake.

[4] Self-sustaining populations of other species present in the lake include smallmouth bass, yellow perch and burbot.