Long Pond, also known as Great Pond, is a nearly four mile long

glacial lake A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the depression created by the glacier. Formation Near the end of the last glacial period, roughly 10,0 ...

located on Mount Desert Island in

Hancock County, Maine Hancock County is a county located in the U.S. state of Maine. As of the 2020 census, the population was 55,478. Its county seat is Ellsworth. The county was incorporated on June 25, 1789, and named for John Hancock, the first governor of ...

, United States.

References

Lakes of Hancock County, Maine Glacial lakes of the United States Mount Desert Island Lakes of Maine {{Maine-geo-stub