flat land that borders a river channel and
defined by the high water mark reached during flooding. Low gradient
tend to have a meandering form which makes the floodplain very wide
previous channels would have been in positions other than the current
Because the area receives new sediments during floods, floodplains tend
to be very fertile. The bottom photograph shows a floodplain of the
in California. Some of the old river channels can still be seen.
After "Earth, An Introduction to Physical Geography"