Great East Lake supports abundant wildlife, and 21 fish species including lake trout (togue), rainbow trout, smallmouth bass, largemouth bass, American eel, hornpout, white perch, black crappie and chain pickerel.

[4] The Great East Lake watershed is located in Acton, Maine, and Wakefield, New Hampshire, and covers approximately 9,939 acres (40.2 km2).

Great East Lake flows into Horn Pond which in turn starts the Salmon Falls River at its outflow.

The shoreline of Great East Lake is composed of primarily medium density residential houses and camps (77%).

Great East Lake has several other programs and organizations dedicated to protecting its pristine water quality.