Echo Lake is located in the town of Charleston in

Orleans County, Vermont Orleans County is a county located in the northeastern part of the U.S. state of Vermont. As of the 2020 census, the population was 27,393. Its shire town (county seat) is the city of Newport. The county was created in 1792 and organized in ...

, within a region known as the

Northeast Kingdom The Northeast Kingdom (also, locally, "The Kingdom" and abbreviated NEK) is the northeast corner of the U.S. state of Vermont, approximately comprising Essex, Orleans, and Caledonia counties and with a population of 64,764 at the 2010 census. T ...

. It is one of only two deep, cold, and

oligotroph An oligotroph is an organism that can live in an environment that offers very low levels of nutrients. They may be contrasted with copiotrophs, which prefer nutritionally rich environments. Oligotrophs are characterized by slow growth, low rates o ...

ic lakes in the Clyde River system, the other being nearby Lake Seymour. 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 and is long and at its widest; its maximum depth is . The lake is fed by the outlet from Lake Seymour. The lake empties into the Clyde River,

Lake Memphremagog Lake Memphremagog (; , ) is a fresh water glacial lake located between Newport (city), Vermont, Newport, Vermont, United States and Magog, Quebec, Canada. The lake spans both Quebec and Vermont, but is mostly in Quebec. Most of the watershed th ...

and, eventually, Canada's

St. Lawrence River The St. Lawrence River (, ) is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawren ...

. A dam is used for hydroelectric power. Construction was completed in 1922. It is owned by Citizens Utilities Company. The dam is concrete. The core is homogeneous concrete. The foundation is rock. The height is by . Maximum discharge is per second. Its capacity is . Normal storage is . It drains an area of . The dam was reconstructed in 1984. The coldwater fishery at Echo Lake offers

rainbow trout The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributary, tributaries of the Pacific Ocean in North America and Asia. The steelhead (sometimes called steelhead trout) is an Fish migration#Classification, ...

brook trout The brook trout (''Salvelinus fontinalis'') is a species of freshwater fish in the char genus ''Salvelinus'' of the salmon family Salmonidae native to Eastern North America in the United States and Canada. Two ecological forms of brook trout h ...

and

lake trout The lake trout (''Salvelinus namaycush'') is a freshwater Salvelinus, char living mainly in lakes in Northern North America. Other names for it include mackinaw, namaycush, lake char (or charr), touladi, togue, laker, and grey trout. In Lake Sup ...

(both wild and stocked), as well as landlocked

Atlantic salmon The Atlantic salmon (''Salmo salar'') is a species of ray-finned fish in the family Salmonidae. It is the third largest of the Salmonidae, behind Hucho taimen, Siberian taimen and Pacific Chinook salmon, growing up to a meter in length. Atlan ...

that have travelled from nearby Seymour Lake. Self-sustaining populations of other species present in the lake include

smallmouth bass The smallmouth bass (''Micropterus dolomieu'') is a species of freshwater fish in the Centrarchidae, sunfish family (biology), family (Centrarchidae) of the order (biology), order Centrarchiformes. It is the type species of its genus ''Micropterus ...

yellow perch The yellow perch (''Perca flavescens''), commonly referred to as perch, striped perch, American perch or preacher is a freshwater perciform fish native to much of North America. The yellow perch was described in 1814 by Samuel Latham Mitchill fr ...

and

burbot The burbot (''Lota lota''), also known as bubbot, mariah, loche, cusk, freshwater cod, freshwater ling, freshwater cusk, the lawyer, coney-fish, lingcod, or eelpout, is a species of coldwater ray-finned fish native to the subarctic regions of ...

References

Charleston, Vermont Lakes of Vermont Lakes of Orleans County, Vermont {{vermont-geo-stub