Lake Francis Case

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Lake Francis Case
Fort Randall Dam, South Dakota.jpg
Fort Randall Dam, with Lake Francis Case in the background
Location South Dakota
Coordinates 43°03′35″N 98°33′43″W / 43.05972°N 98.56194°W / 43.05972; -98.56194Coordinates: 43°03′35″N 98°33′43″W / 43.05972°N 98.56194°W / 43.05972; -98.56194
Type reservoir
Primary inflows Missouri River, White River
Primary outflows Missouri River
Catchment area 263,480 sq mi (682,400 km2)[1]
Basin countries United States
Max. length 107 mi (172 km)[1]
Surface area 102,000 acres (41,000 ha)[1]
Max. depth 140 ft (43 m)[1]
Water volume 5,700,000 acre·ft (7.0 km3)[1]
Shore length1 540 mi (870 km)[1]
Surface elevation 1,368 ft (417 m)[1]
1 Shore length is not a well-defined measure.

Lake Francis Case is a large reservoir behind Fort Randall Dam on the Missouri River in south-central South Dakota, USA. The lake has an area of 102,000 acres (410 km2) and a maximum depth of 140 ft (43 m).[1] Lake Francis Case has a length of approximately 107 mi (172 km) and has a shoreline of 540 mi (870 km).[1] The reservoir is named for former South Dakota Senator Francis Higbee Case.[2]

Species of fish in the reservoir include walleye, northern pike, sauger, sunfish, yellow perch, common carp, black bullhead, channel catfish, and smallmouth bass.[3]

The South Dakota Department of Game, Fish and Parks maintains the North Point, Pease Creek, North Wheeler, Platte Creek, Snake Creek and Buryanek Recreation Areas along Lake Francis Case.[4][5]

Several major highways cross the reservoir. South Dakota Highway 44 crosses over the lake between rural Charles Mix County and Gregory County on the longest bridge in South Dakota,[6] and Interstate 90 crosses the reservoir between Chamberlain and Oacoma.

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