photo, digging for dinosaur fossils in a Montana coulee

Coulees are grooves dug in the landscape. They can be very deep or relatively shallow, with or without water. A draw is usually describing a shallow geographic feature, like a coulee, but not usually as deep as one would think of a coulee, more like a depression in the terrain where a stream would course. In Montana, we have an area called the Missouri Breaks. The landscape is broken into ravines, coulees, gullies, draws... a wilderness area that is rugged terrain.
photo, click here