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Big Sioux River in South Dakota

River44.7 mi

Around here

Around Big Sioux River

10 mi

Public land: USGS PAD-US

About this river

Big Sioux River is a 44.7 mile river. Streamflow is measured at the USGS gauge Big Sioux River at Watertown, SD (site 06479500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Boat access nearby

6 mapped launches sit in the mapped area of Big Sioux River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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