Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River | Yangtze River | Tocantins River |
The Vecht (sometimes called the Overijsselse Vecht, to avoid confusion with its namesake in Utrecht) and Regge rivers determined the first settlements in the area that is now the municipality of Ommen.
The most important of these waterways is of course river IJssel; others include the Zwarte Water and (Overijsselse) Vecht rivers; the Regge stream, which flows through Twente to spend its last few kilometers in Salland before ending in the Vecht near Ommen; the Schipbeek stream; and the Soestwetering stream, which merges with a number of lesser streams near Zwolle to form river Zwarte Water.