Dale

n.	1.	A low place between hills; a vale or valley. Where mountaines rise, umbrageous dales descend. - Thomson.
	2.	A trough or spout to carry off water, as from a pump.

Noun

1.

dale - an open river valley (in a hilly area)

bottom, bottom glade, bottoms, combe, dell, dingle, gap, gill, glen, grove, intervale, lunar rill, pass, ravine, strath, trench, trough, vale, valley, wadi