| Answer | Crossword Clue |
|---|---|
| potamic | of or pertaining to rivers |
| potamic | pertaining to rivers (a large natural stream of water) |
| DELTAIC | Pertaining to a river's mouth. |
| watershed | An area or ridge of land that separates waters flowing to different rivers, basins, or seas |
| watersheds | An area or ridge of land that separates waters flowing to different rivers, basins, or seas |
| avulsion | the sudden removal of soil by change in a river's course or by a flood, from the land of one owner to that of another |
