Lake Size: 7,886 acres
Deepest Depth: 22 ft
Latitude: 44.568333
Longitude: -97.085278
Lake Level Above Sea Level: 1640 ft (500 m)
Counties: Hamlin County
Cities: Arlington

Information: It was named in honor of the U. S. Secretary of War, Joel Poinsett. In 1838, the area was first visited by the expedition of Joseph Nicollet and John Fremont, who camped on the lake's north shore.