Lewis and Clark Lake is a 31,400 acre (130 km2) reservoir located on the border of the U.S. states of Nebraska and South Dakota on the Missouri River.

[2] The lake is impounded by Gavins Point Dam and is managed by the U.S. Army Corps of Engineers, Omaha District.

In 1804, while traveling up the Missouri River on their epic journey to the Pacific Ocean, Lewis and Clark participated in a Grand council with the Yankton Sioux at a site below Calumet Bluff.

[4] In 1874, the Bon Homme Colony of Hutterites, a branch of the Mennonite movement exiled from Austria, settled on what is now the north shore of Lewis and Clark Lake.

A theater shows educational videos on the Lewis and Clark Expedition, construction of Gavins Point Dam, and the natural history of the Missouri River Region.

The visitor center is known as a viewing point for the American Bald Eagle, which frequents the Missouri River below the dam, especially in winter months.

The visitors center is operated and staffed by U.S. Army Corps of Engineers Park Rangers, who also give guided tours of Gavins Point Dam and the power plant.

[5] Lewis and Clark Lake is a very popular regional tourist destination in the upper Midwest for camping, water sports, hiking, bird watching, hunting, fishing, swimming, and biking.

The upper stretches of the lake are renowned for their superior waterfowl viewing and hunting opportunities along the Missouri River flyway.

[5] Species of fish present include walleye, northern pike, sauger, sunfish, yellow perch, common carp, black bullhead, channel catfish, and smallmouth bass.

[9] Fishing below Gavins Point Dam is very popular, especially for the annual paddlefish snagging season in October and bowfishing in June.