"Deposits of clay, silt, sand, gravel, or other particulate material that has been deposited by a stream or other body of running water in a streambed, on a flood plain, on a delta, or at the base of a mountain." (U.S. Geological Survey, 2019)


U.S. Geological Survey (USGS). "Water Science Glossary Terms". USGS Water Science School. (2019). Link: