A large groove or channel in the soil that carries runoff is called a gully.

Here's why:

* Runoff: Water that flows over the land surface, rather than soaking into the ground.

* Gully: A channel or ravine that is formed by erosion, usually by water. Gullies can be small or very large, and they can be found in a variety of landscapes.

Let me know if you have any other questions!