Ross Hoddinott / 2020VISION / River Plym flowing fast through Dewerstone Wood, Shaugh Prior, Dartmoor National Park, Devon, England, UK, October 2011. Did you know? The name Plym comes from the Old English term for plum tree.

Wild Wonders of Europe / Smit / Hard wood flood plain forest in early morning. River Danube, Gornje Podunavlje Special Nature Reserve, Serbia, June 2009.

Wild Wonders of Europe / Smit / Hard wood flood plain forest along river Danube in early morning, Gornje Podunavlje Special Nature Reserve, Serbia, June 2009

Wild Wonders of Europe / Falklind / Dala river, where Brown trout (Salmo trutta) live, flowing through wood with fallen trees across the river, Gtene, Vstra Gtaland, Sweden, June 2009

Wild Wonders of Europe / Ruiz / Krinice River in wood, Dlouhy Dul, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, September 2008

Wild Wonders of Europe / Ruiz / Krinice River flowing past rock face in wood, Dlouhy Dul, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, September 2008

Wild Wonders of Europe / Ruiz / Krinice River in wood, Dlouhy Dul, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, September 2008

Wild Wonders of Europe / Ruiz / Kamenice River flowing past large rocks in wood, Hrensko, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, November 2008

Wild Wonders of Europe / Ruiz / Krinice River flowing by large rocks in wood, Kyov, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, September 2008

Wild Wonders of Europe / Ruiz / Krinice River flowing through wood, Dlouhy Dul, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, September 2008

Wild Wonders of Europe / Ruiz / Krinice River flowing through wood with large rocks, Dlouhy Dul, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, September 2008

Gerry Ellis / American Beaver (Castor canadensis) dam, Silver Horn Creek, Lake Silver Horn, Wood River, Wood-Tikchik State Park, Alaska