Rankings
Where the rivers run longest
The longest river runs on the map and the states carrying the most mapped river miles, measured straight from USGS hydrography.
The Longest Mapped River Runs
Named river reaches ranked by mapped length, from USGS hydrography data.
- 1Sheyenne RiverND95.8 mi
- 2Ruisseau WilliamVT84.6 mi
- 3Wood RiverNE83 mi
10,640 river runs rankedSee the full list
States With the Most Mapped River Miles
Every state ranked by total mapped river mileage, from USGS hydrography.
- 1TennesseeTN4,230 mi
- 2GeorgiaGA3,454 mi
- 3AlabamaAL2,668 mi
51 states rankedSee the full list
