| Answer | Crossword Clue |
|---|---|
| GULCH | Narrow ravine cut by a stream |
| gulches | a narrow ravine cut by a fast stream |
| gulches | deep, narrow ravine marking the course of a stream |
| gulch | deep, narrow ravine marking the course of a stream |
| flumes | A deep narrow channel or ravine with a stream running through it |
| esker | a long narrow ridge or mound of sand, gravel, and boulders deposited by a stream flowing on, within, or beneath a stagnant glacier |
