| Rating | Solver | Clue |
|---|---|---|
| CHUTES | Water channels | |
| DITCHES | Water channels | |
| IRRIGATE | To water, as land, by causing a stream to flow upon, over, or through it, as in artificial channels. | |
| DERIVE | To turn the course of, as water; to divert and distribute into subordinate channels; to diffuse; to communicate; to transmit; -- followed by to, into, on, upon. | |
| WATERSHED | The line of division between two adjacent rivers or lakes with respect to the flow of water by natural channels into them; the natural boundary of a basin. | |
| HYDROGRAPHY | ...termination of the contour of the bottom of a harbor or other sheet of water, the depth of soundings, the position of channels and shoals, with ... | |