Lewis and Clark Lake is a 31,400 acre (130 km²)

reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...

located on the

border Borders are usually defined as geographical boundaries, imposed either by features such as oceans and terrain, or by political entities such as governments, sovereign states, federated states, and other subnational entities. Political borders c ...

of the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...

s of

Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the sout ...

and

South Dakota South Dakota (; Sioux: , ) is a U.S. state in the North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Lakota and Dakota Sioux Native American tribes, who comprise a large porti ...

on the Missouri River. The lake is approximately in length with over of

shore A shore or a shoreline is the fringe of land at the edge of a large body of water, such as an ocean, sea, or lake. In physical oceanography, a shore is the wider fringe that is geologically modified by the action of the body of water past a ...

line and a maximum water depth of . The lake is impounded by

Gavins Point Dam Gavins Point Dam is a long embankment rolled-earth and chalk-fill dam which spans the Missouri River and impounds Lewis and Clark Lake. The dam joins Cedar County, Nebraska with Yankton County, South Dakota a distance of 811.1 river miles (1,30 ...

and is managed by the

U.S. Army Corps of Engineers , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...

, Omaha District.

History

The

Missouri River Valley The Missouri River Valley outlines the journey of the Missouri River from its headwaters where the Madison, Jefferson and Gallatin Rivers flow together in Montana to its confluence with the Mississippi River in the State of Missouri. At long th ...

Area is abound with history involving several early Native American Tribes, Pioneers, and other settlers to the area due to ease of river transportation and abundant resources. Lewis and Clark Lake is named after explorers Meriwether Lewis and

William Clark William Clark (August 1, 1770 – September 1, 1838) was an American explorer, soldier, Indian agent, and territorial governor. A native of Virginia, he grew up in pre-statehood Kentucky before later settling in what became the state of Miss ...

of the

Lewis and Clark Expedition The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase. The Corps of Discovery was a select gr ...

. The lake is located along the

Lewis and Clark National Historic Trail The Lewis and Clark National Historic Trail is a route across the United States commemorating the Lewis and Clark Expedition of 1804 to 1806. It is part of the National Trails System of the United States. It extends for some from Pittsburgh, Pe ...

. The archaeological record in the area dates back to the Archaic Period, sometime around 3,000 to 5,000 B.C. The Archaic Period people lived along small

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...

streams that flow into the Missouri Valley. Later, Woodland Period people (500 B.C. – 1,000 A.D.) lived in the area. More recent inhabitants include the

Ponca The Ponca ( Páⁿka iyé: Páⁿka or Ppáⁿkka pronounced ) are a Midwestern Native American tribe of the Dhegihan branch of the Siouan language group. There are two federally recognized Ponca tribes: the Ponca Tribe of Nebraska and the Ponca ...

Yankton Sioux The Dakota (pronounced , Dakota language: ''Dakȟóta/Dakhóta'') are a Native American tribe and First Nations band government in North America. They compose two of the three main subcultures of the Sioux people, and are typically divided into ...

and Omaha tribes in the late 18th and 19th centuries. The

Minnesota Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over to ...

Santee Sioux The Dakota (pronounced , Dakota language: ''Dakȟóta/Dakhóta'') are a Native American tribe and First Nations band government in North America. They compose two of the three main subcultures of the Sioux people, and are typically divided into ...

arrived on the river shore in the mid-1800s and remain in the area. In 1804, while traveling up the Missouri River on their epic journey to the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contin ...

, Lewis and Clark participated in a Grand council with the Yankton Sioux at a site below Calumet Bluff. This significant meeting was the first meeting with a Sioux tribe on their journey upstream. In 1874, the Bon Homme Colony of Hutterites, a branch of the

Mennonite Mennonites are groups of Anabaptist Christian church communities of denominations. The name is derived from the founder of the movement, Menno Simons (1496–1561) of Friesland. Through his writings about Reformed Christianity during the Radi ...

movement exiled from

Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...

, settled on what is now the north shore of Lewis and Clark Lake. They are the first Hutterite Colony in South Dakota and the United States. The colony maintains a traditional communal way of life. The lake was filled in 1957 with the completion of construction of Gavins Point Dam across the river valley.

Location

The lake is an impoundment of the Missouri River, located approximately upstream of

St. Louis, Missouri St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...

where the Missouri River joins the

Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it fl ...

. The lake is located within

Cedar Cedar may refer to: Trees and plants *''Cedrus'', common English name cedar, an Old-World genus of coniferous trees in the plant family Pinaceae *Cedar (plant), a list of trees and plants known as cedar Places United States * Cedar, Arizona * ...

and Knox Counties in Nebraska and Bon Homme and Yankton Counties in South Dakota.

Lake Yankton Lake Yankton is a lake in Lyon County, in the U.S. state of Minnesota. Lake Yankton was named for the Yankton Dakota The Dakota (pronounced , Dakota language: ''Dakȟóta/Dakhóta'') are a Native American tribe and First Nations band gover ...

is located immediately downstream of Gavins Point Dam. The

Santee Sioux Reservation The Santee Sioux Reservation ( dak, Isáŋyathi) of the Santee Sioux (also known as the Eastern Dakota) was established in 1863 in present-day Nebraska. The tribal seat of government is located in Niobrara, Nebraska, with reservation lands in K ...

is located along the southwestern shore in Knox County. The lake is located approximately west or upstream of

Yankton, South Dakota Yankton is a city in and the county seat of Yankton County, South Dakota, United States. The population was 15,411 at the 2020 census, and it is the principal city of the Yankton Micropolitan Statistical Area, which includes the entirety of Y ...

Lewis and Clark Visitor Center

The Lewis and Clark Visitor Center is located just south of Gavins Point Dam atop Calumet Bluff with views of Lewis and Clark Lake, Lake Yankton, and the Missouri River below the dam. The visitor center is open daily from Memorial Day weekend through Labor Day weekend and open weekdays during other times of the year. The visitor center interprets the history of the

Missouri River Basin The Missouri River Valley outlines the journey of the Missouri River from its headwaters where the Madison, Jefferson and Gallatin Rivers flow together in Montana to its confluence with the Mississippi River in the State of Missouri. At long th ...

, including Native Americans, pioneers, the Lewis and Clark Expedition (which traveled through the area); along with local

wildlife Wildlife refers to undomesticated animal species, but has come to include all organisms that grow or live wild in an area without being introduced by humans. Wildlife was also synonymous to game: those birds and mammals that were hunted ...

and the history of the Corps of Engineers in the area. 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. A bookstore offers educational books, videos, and other merchandise for sale. The visitor center is known as a viewing point for the

American Bald Eagle The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche as ...

, 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 A ranger, park ranger, park warden, or forest ranger is a law enforcement person entrusted with protecting and preserving parklands – national, state, provincial, or local parks. Description "Parks" may be broadly defined by some systems in th ...

, who also give guided tours of Gavins Point Dam and the

power plant A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an el ...

Parks and recreation

Lewis and Clark Lake is a very popular regional tourist destination in the upper Midwest for

camping Camping is an outdoor activity involving overnight stays away from home, either without shelter or using basic shelter such as a tent, or a recreational vehicle. Typically, participants leave developed areas to spend time outdoors in more na ...

water sports Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a s ...

hiking Hiking is a long, vigorous walk, usually on trails or footpaths in the countryside. Walking for pleasure developed in Europe during the eighteenth century.AMATO, JOSEPH A. "Mind over Foot: Romantic Walking and Rambling." In ''On Foot: A Histor ...

bird watching Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science. A birdwatcher may observe by using their naked eye, by using a visual enhancement device like binoculars or a telescope, by ...

hunting Hunting is the human practice of seeking, pursuing, capturing, or killing wildlife or feral animals. The most common reasons for humans to hunt are to harvest food (i.e. meat) and useful animal products ( fur/ hide, bone/tusks, horn/antler, ...

fishing Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment, but may also be caught from stocked bodies of water such as ponds, canals, park wetlands and reservoirs. Fishing techniques inclu ...

swimming Swimming is the self-propulsion of a person through water, or other liquid, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs and the body to achieve hydrodynamic thrust that r ...

, and biking. Average annual public visitation exceeds one-million visitors per year to the lake area. Many of these recreation areas around the lake offer boat ramps, marinas, campgrounds, and day-use areas. The upper stretches of the lake are renowned for their superior

waterfowl Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which i ...

viewing and hunting opportunities along the Missouri River

flyway A flyway is a flight path used by large numbers of birds while migrating between their breeding grounds and their overwintering quarters. Flyways generally span continents and often pass over oceans. Although applying to any species of migrat ...

. Located downstream of the lake is the 59-mile reach of the

Missouri National Recreational River The Missouri National Recreational River is a National Recreational River located on the border between Nebraska and South Dakota. The designation was first applied in 1978 to a 59-mile section of the Missouri River between Gavins Point Dam and ...

(MNRR) which stretches eastward from the dam to

Ponca State Park Ponca State Park is a public recreation area located on the banks of the Missouri River north of Ponca, Nebraska, in the northeastern corner of the state. The state park's approximately are situated among high bluffs and steep, forested hills ...

, upstream of the lake is the 39-mile reach of the MNRR which stretches westward to

Fort Randall Dam Fort Randall Dam is a earthen dam which spans the Missouri River and impounds Lake Francis Case, the 11th-largest reservoir in the U.S. The dam joins Gregory and Charles Mix counties, South Dakota a distance of 880 river miles (1,416 km) u ...

List of recreation and public use areas

The following are public parks and lake access areas on Lewis and Clark Lake: *Nebraska: ** Lewis and Clark State Recreation Area ( NE GPC) ***Weigand-Burbach Area & Marina ***South Shore Recreation Area ***Bloomfield Recreation Area ***Miller Creek Recreation Area ** Niobrara State Park (NE GPC) **Niobrara Recreation Area (Village of Niobrara) ** Calumet Bluff Trail & Overlook (

USACE , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...

) **Hideaway Acres (Hideaway Acres Assn.) **Santee Recreation Area (USACE & Santee Sioux Nation) ** Cottonwood Recreation Area (USACE) ** Nebraska Tailwaters Recreation Area (USACE) ** Training Dike Recreation Area (USACE) **Deep Water Area (USACE) **Devil's Nest (USACE) **Bazile Creek Wildlife Management Area (NE GPC) *South Dakota: ** Lewis & Clark Recreation Area ( SD GFP) ***Lewis & Clark Marina and Resort *** Pierson Ranch Recreation Area *** Chief White Crane Recreation Area ** Gavins Point National Fish Hatchery and Aquarium (U.S. Fish & Wildlife Service) **Tabor Lakeside Use Area (SD GFP) **Charley Creek Lakeside Use Area (SD GFP) **Twin Bridges Lakeside Use Area (SD GFP) **Sand Creek Lakeside Use Area (SD GFP) ** Springfield Recreation Area (SD GFP) **Springfield Bottoms Game Production Area (SD GFP) **Running Water Lakeside Use Area (SD GFP) *Key: ** NE GPC = Nebraska Game and Parks Commission ** USACE = U.S. Army Corps of Engineers ** SD GFP = South Dakota Department of Game, Fish and Parks

Fish, wildlife and natural resources

The

natural resource Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. O ...

s and

public land In all modern states, a portion of land is held by central or local governments. This is called public land, state land, or Crown land (Australia, and Canada). The system of tenure of public land, and the terminology used, varies between countrie ...

s on and around the lake are cooperatively managed by the U.S. Army Corps of Engineers,

Nebraska Game and Parks Commission The Nebraska Game and Parks Commission (NGPC) is the State of Nebraska's State agency charged with stewardship of the state's fish, wildlife, state park, and outdoor recreation resources. The agency is led by a governor-appointed member commission ...

, and the

South Dakota Department of Game, Fish, and Parks The South Dakota Department of Game, Fish, and Parks (GFP) is the U.S. State of South Dakota's State Agency charged with the management of the state's public recreational and outdoor resources. The GFP manages the 13 State Parks and 43 State R ...

. Common

game A game is a structured form of play (activity), play, usually undertaken for enjoyment, entertainment or fun, and sometimes used as an educational tool. Many games are also considered to be work (such as professional players of spectator s ...

species around the lake include

White-tailed deer The white-tailed deer (''Odocoileus virginianus''), also known as the whitetail or Virginia deer, is a medium-sized deer native to North America, Central America, and South America as far south as Peru and Bolivia. It has also been introduced t ...

Wild Turkey The wild turkey (''Meleagris gallopavo'') is an Upland game bird, upland ground bird native to North America, one of two extant species of Turkey (bird), turkey and the heaviest member of the order Galliformes. It is the ancestor to the domestic ...

, many species of

Pheasant Pheasants ( ) are birds of several genera within the family (biology), family Phasianidae in the order (biology), order Galliformes. Although they can be found all over the world in introduced (and captive) populations, the pheasant genera na ...

Cottontail rabbit Cottontail rabbits are the leporid species in the genus ''Sylvilagus'', found in the Americas. Most ''Sylvilagus'' species have stub tails with white undersides that show when they retreat, giving them their characteristic name. However, this ...

Mourning Dove The mourning dove (''Zenaida macroura'') is a member of the dove family, Columbidae. The bird is also known as the American mourning dove, the rain dove, and colloquially as the turtle dove, and was once known as the Carolina pigeon and Caroli ...

, and

squirrel Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squ ...

. The

is commonly seen around the dam and lake area, especially in the winter months. Each January the Lewis and Clark Visitor Center hosts "Bald Eagle Days" a live-bird program that is popular with visitors. Species of

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

present include

walleye The walleye (''Sander vitreus'', synonym ''Stizostedion vitreum''), also called the yellow pike or yellow pickerel, is a freshwater perciform fish native to most of Canada and to the Northern United States. It is a North American close relat ...

northern pike The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus '' Esox'' (the pikes). They are typical of brackish and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). They are known simply as a ...

sauger The sauger (''Sander canadensis'') is a freshwater perciform fish of the family Percidae that resembles its close relative, the walleye. The species is a member of the largest vertebrate order, the Perciformes.Jaeger, Matthew. 2004. Montana's ...

, sunfish,

yellow perch The yellow perch (''Perca flavescens''), commonly referred to as perch, striped perch, American perch, American river perch or preacher is a freshwater perciform fish native to much of North America. The yellow perch was described in 1814 by Samu ...

common carp The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Linnaeus, 1758/ref>Arkive The ...

black bullhead The black bullhead or black bullhead catfish (''Ameiurus melas'') is a species of bullhead catfish. Like other bullhead catfish, it has the ability to thrive in waters that are low in oxygen, brackish, turbid and/or very warm. It also has barbels ...

channel catfish The channel catfish (''Ictalurus punctatus'') is North America's most numerous catfish species. It is the official fish of Kansas, Missouri, Iowa, Nebraska, and Tennessee, and is informally referred to as a "channel cat". In the United States, the ...

, and smallmouth bass. Fishing below

is very popular, especially for the annual

paddlefish Paddlefish (family Polyodontidae) are a family of ray-finned fish belonging to order Acipenseriformes, and one of two living groups of the order alongside sturgeons (Acipenseridae). They are distinguished from other fish by their titular elongla ...

snagging Snagging, also known as snag fishing, snatching, snatch fishing, jagging (Australia), or foul hooking, is a fishing technique for catching fish that uses sharp grappling hooks tethered to a fishing line to externally pierce (i.e. "snag") into th ...

season in October and

bowfishing Bowfishing is a method of hunting fish that uses specialized archery equipment to lethally shoot and retrieve the animal. Fish are shot with a barbed arrow that is attached with a special line to a reel mounted on a bow or crossbow. Historically, ...

in June. The "Fishing Wall" immediately below the dam's

spillway A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure tha ...

is popular for fishing year-round as the dam keeps the river free of ice in the winter months. The U.S. Army Corps of Engineers and the

U.S. Fish and Wildlife Service The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with othe ...

monitor and manage threatened and

endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

on the lake and river. Species of concern include the

Pallid sturgeon The pallid sturgeon (''Scaphirhynchus albus'') is an endangered species of ray-finned fish, endemic to the waters of the Missouri and lower Mississippi river basins of the United States. It may have even reached the St. Croix River before co ...

least tern The least tern (''Sternula antillarum'') is a species of tern that breeds in North America and locally in northern South America. It is closely related to, and was formerly often considered conspecific with, the little tern of the Old World. Ot ...

, and

piping plover The piping plover (''Charadrius melodus'') is a small sand-colored, sparrow-sized shorebird that nests and feeds along coastal sand and gravel beaches in North America. The adult has yellow-orange-red legs, a black band across the forehead from e ...

. A branch of the Corps known as th
Missouri River Recovery Program
monitors these species and helps to restore native habitat that was lost as a result of dam construction and channelization of the Missouri River. The

Gavins Point National Fish Hatchery The Gavins Point National Fish Hatchery is a fish hatchery administered by the U.S. Fish and Wildlife Service, located approximately 4 miles west of Yankton, South Dakota, Yankton, in Yankton County, South Dakota, United States. The hatchery is lo ...

is located just downstream of the lake.

Current lake issues

There are several issues impacting recreation, wildlife, and other issues. In 2014

zebra mussels The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally Introduced species, introduced to numerous other areas and has become an inv ...

, an aquatic invasive

mussel Mussel () is the common name used for members of several families of bivalve molluscs, from saltwater and Freshwater bivalve, freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other ...

were discovered in the lake and have infested the reservoir and the Missouri River downstream of Gavins Point Dam. Lewis and Clark Lake is significantly impacted by

sedimentation Sedimentation is the deposition of sediments. It takes place when particles in suspension settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the ...

and

siltation Siltation, is water pollution caused by particulate terrestrial clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary or ...

issues, diminishing the overall water surface area, water storage capacity, and recreational opportunities.

Sediment Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand an ...

carried by the Missouri River and

Niobrara River The Niobrara River (; oma, Ní Ubthátha khe, , literally "water spread-out horizontal-the" or "The Wide-Spreading Water") is a tributary of the Missouri River, approximately long,U.S. Geological Survey. Many early settlers, such as Mari Sando ...

is slowed and trapped within the reservoir due to the dam impounding and thus slowing the natural river flow. Studies show approximately 5.1 million tons of sediment are deposited in the lake each year, which contributes to the lake's increasing size of delta area on the western portions of the lake. Approximately 60% of the sediment comes from the Nebraska Sandhills via the Niobrara River. As of 2016, approximately 30% of the lake's overall surface area has diminished due to sedimentation deposits, and some figures project by 2045 approximately 50% of the lake will be diminished due to sedimentation deposits. Presently, there is no plan or solution to remove or slow the progression of the siltation within the lake.http://msaconline.com/

External links

U.S. Army Corps of Engineers, Gavins Point Project & Lewis and Clark Lake
(Official site)
Corps Lakes - Lewis and Clark LakeRecreation.gov - Lewis and Clark LakeLewis and Clark State Recreation Area - Nebraska Game and Parks CommissionLewis and Clark Recreation Area - South Dakota Department of Game, Fish & ParksSpringfield Recreation Area - South Dakota Department of Game, Fish & Parks

References

{{authority control Reservoirs in Nebraska Reservoirs in South Dakota

Lewis and Clark Lewis may refer to: Names * Lewis (given name), including a list of people with the given name * Lewis (surname), including a list of people with the surname Music * Lewis (musician), Canadian singer * "Lewis (Mistreated)", a song by Radiohead ...

Bodies of water of Bon Homme County, South Dakota Bodies of water of Cedar County, Nebraska Bodies of water of Knox County, Nebraska Buildings and structures in Knox County, Nebraska Buildings and structures in Cedar County, Nebraska Bodies of water of Yankton County, South Dakota Tourist attractions in Bon Homme County, South Dakota Tourist attractions in Yankton County, South Dakota Tourist attractions in Cedar County, Nebraska Tourist attractions in Knox County, Nebraska Federal lands in Nebraska Water supply infrastructure in Nebraska Lakes of South Dakota Lakes of Nebraska Lewis and Clark Expedition