Lake Oahe
Encyclopedia
Lake Oahe is a large reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 behind Oahe Dam
Oahe Dam
The Oahe Dam is a large dam along the Missouri River, just north of Pierre, South Dakota in the United States. It creates Lake Oahe, the fourth largest artificial reservoir in the United States, which stretches up the course of the Missouri to Bismarck, North Dakota. The dam's powerplant provides...

 on the Missouri River
Missouri River
The Missouri River flows through the central United States, and is a tributary of the Mississippi River. It is the longest river in North America and drains the third largest area, though only the thirteenth largest by discharge. The Missouri's watershed encompasses most of the American Great...

 beginning in central South Dakota
South Dakota
South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over...

 and continuing north into North Dakota
North Dakota
North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....

 in the United States. The lake has an area of 370000 acres (1,497.3 km²) and a maximum depth of 205 ft (62.5 m). By volume, it is the fourth-largest reservoir in the US. Lake Oahe has a length of approximately 231 mi (371.8 km) and has a shoreline of 2250 mi (3,621 km). 51 recreation areas are located along Lake Oahe, and 1.5 million people visit the reservoir every year. The lake is named for the 1874 Oahe Indian Mission.

Species of fish in the reservoir include walleye
Walleye
Walleye is a freshwater perciform fish native to most of Canada and to the northern United States. It is a North American close relative of the European pikeperch...

, northern pike
Northern Pike
The northern pike , is a species of carnivorous fish of the genus Esox...

, channel catfish
Channel catfish
Channel catfish, Ictalurus punctatus, is North America's most numerous catfish species. It is the official fish of Missouri, Iowa, Nebraska, Kansas, and Tennessee, and is informally referred to as a "channel cat". In the United States they are the most fished catfish species with approximately 8...

, and smallmouth bass
Smallmouth bass
The smallmouth bass is a species of freshwater fish in the sunfish family of the order Perciformes. It is the type species of its genus...

. Chinook Salmon
Chinook salmon
The Chinook salmon, Oncorhynchus tshawytscha, is the largest species in the pacific salmon family. Other commonly used names for the species include King salmon, Quinnat salmon, Spring salmon and Tyee salmon...

, native to the Pacific Northwest
Pacific Northwest
The Pacific Northwest is a region in northwestern North America, bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Definitions of the region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common concept of the...

, are artificially maintained in Lake Oahe and are a popular target for anglers. The lake also supports populations of the endangered pallid sturgeon
Pallid sturgeon
The pallid sturgeon is an endangered species of ray-finned fish, endemic to the waters of the Missouri and lower Mississippi River basins of the United States...

.

Lake Oahe begins just north of Pierre, South Dakota
Pierre, South Dakota
Pierre is the capital of the U.S. state of South Dakota and the county seat of Hughes County. The population was 13,646 at the 2010 census, making it the second least populous state capital after Montpelier, Vermont...

 and extends nearly as far north as Bismarck, North Dakota
Bismarck, North Dakota
Bismarck is the capital of the U.S. state of North Dakota and the county seat of Burleigh County. It is the second most populous city in North Dakota after Fargo. The city's population was 61,272 at the 2010 census, while its metropolitan population was 108,779...

. Mobridge, South Dakota
Mobridge, South Dakota
Mobridge is a city in Walworth County, South Dakota, United States. The population was 3,465 at the 2010 census.-Geography:Mobridge is located at ....

 is located on the eastern shore of the central portion of the lake. A map centered around Mobridge 45°32′14"N 100°25′40"W probably gives the best view of the extent of the lake. Bridges over Lake Oahe include US Route 212 west of Gettysburg, South Dakota
Gettysburg, South Dakota
Gettysburg is a city in Potter County, South Dakota, United States, along the 45th parallel. The population was 1,162 at the 2010 census. It is the county seat of Potter County. Gettysburg area historical tornado activity is 42 percent less than the overall U.S...

 and US Route 12 at Mobridge.

Both the Cheyenne River Indian Reservation
Cheyenne River Indian Reservation
The Cheyenne River Indian Reservation was created by the United States in 1889 by breaking up the Great Sioux Reservation, following its victory over the Lakota in a series of wars in the 1870s. The reservation covers almost all of Dewey and Ziebach counties in South Dakota...

 and the Standing Rock Indian Reservation
Standing Rock Indian Reservation
The Standing Rock Indian Reservation is a Lakota, Yanktonai and Dakota Indian reservation in North Dakota and South Dakota in the United States...

 cover much of the western shoreline of Lake Oahe. Two possible burial sites of Sitting Bull
Sitting Bull
Sitting Bull Sitting Bull Sitting Bull (Lakota: Tȟatȟáŋka Íyotake (in Standard Lakota Orthography), also nicknamed Slon-he or "Slow"; (c. 1831 – December 15, 1890) was a Hunkpapa Lakota Sioux holy man who led his people as a tribal chief during years of resistance to United States government policies...

, a Sioux leader, are located along Lake Oahe. One is near Fort Yates, North Dakota, while the other is near Mobridge.
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