In geology backswamp is the section of a floodplain where deposits of fine silts and clays settle after a flood. Backswamps usually lie behind a stream's natural levees.

backswamp
Geology of Backswamp Deposits in the Atchafalaya Basin, Louisiana
Biostratinomy of a holocene oxbow lake: A backswamp to mid-channel transect
Common Property as Enclosure: A Case Study of a Backswamp in Southern Laos
Seasonality and community structure of the backswamp invertebrates in a Louisiana cypress-tupelo wetland
Assessment of engineering properties of Yangtze River backswamp sedimentary soil under low embankment
Structural characteristic and engineering effect analysis of Yangtze River backswamp soft soil
The effects of a weir on reducing acid flux from a drained coastal acid sulphate soil backswamp
Alteration of groundwater and sediment geochemistry in a sulfidic backswamp due to Melaleuca quinquenervia encroachment.
Properties of organic and acid sulfate soils and water of a 'reclaimed' tidal backswamp in Central Kalimantan, Indonesia.