gulley

Example:The park is known for its deep ravines which attract hikers.

Definition:A deep and narrow valley with steep sides, usually carved by water or glacial activity.

Example:The canyon provided a natural barrier for the army.

Definition:A deep narrow valley with steep sides, usually carved by a river.

Example:Farmers have to be careful not to plant in the wash areas to avoid soil erosion.

Definition:A small stream, especially one carved by flash floods.