South Dakota River Map (PDF) | Major Rivers & Lakes in South Dakota

South Dakota River Map showing major rivers in South Dakota, River start and end point, county boundaries.

River Map of South Dakota State

About Map: South Dakota River Map showing major rivers in South Dakota, county boundaries and state boundary.

PDF Map - Free Download South Dakota River Map, United States

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Rivers and Waterways in South Dakota

South Dakota’s river systems are shaped by plains, rolling hills, and the Black Hills region, with most waterways draining into the Missouri River and ultimately the Mississippi River. The Missouri River runs through the center of the state, forming a series of large reservoirs. Eastern rivers flow through flatter farmland, while western rivers are often influenced by seasonal rainfall and snowmelt. Lakes and reservoirs play a major role in water storage, flood control, irrigation, and recreation across the state.

Major Rivers in South Dakota

Major Lakes in South Dakota

Major River Basins in South Dakota

South Dakota’s river basins are largely part of the Missouri River system, with most water eventually flowing into the Mississippi River. These basins are critical for agriculture, water supply, and flood control throughout the state.

• Missouri River Basin
• James River Basin
• Big Sioux River Basin
• Cheyenne River Basin
• White River Basin
• Moreau River Basin
• Belle Fourche River Basin
• Grand River Basin
• Bad River Basin

South Dakota Rivers Facts