Floodplain

When a flood plain is not flooded it may be good farmland

A floodplain is the flat area around a river that is covered in times of flood. A floodplain is a very fertile area due to the rich alluvium (fine sediment) deposited by floodwaters. This makes floodplains a good place for agriculture. A build-up of alluvium on the banks of a river can create levees, which raise the riverbank.

Floodplain Media

Paraná River floodplain, at its confluence with the headstream of the Paranaíba (on the right) and the Verde River, near Panorama, Brazil
A floodplain after a one-in-10-year flood on the Isle of Wight
Gravel floodplain of a glacial river near the Snow Mountains in Alaska, 1902
The Laramie River meanders across its floodplain in Albany County, Wyoming, 1949
This aggradational floodplain of a small meandering stream in La Plata County, Colorado, is underlain by silt deposited above a dam formed by a terminal moraine left by the Wisconsin Glacier.
Riparian vegetation on the floodplain of the Lynches River, close to Johnsonville, South Carolina. These tupelo and cypress trees show the high-water mark of flooding.
A low-lying field in Achterwehr Germany inundated by overflow from a nearby waterway.
Flooding of Pampanga River floodplain after Typhoon Quinta, 2020 (view from Santa Rosa, Nueva Ecija bridge).

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