What’s Left Behind: Redepositing After Weathering—THEN WHAT? 1. A deep gorge, typically one with a river flowing through it. What Am I? A canyon 2. A triangular tract of sediment deposited at the mouth of a river. Often has a V shape. What Am I? A delta 3. A narrow valley between hills or mountains. Sometimes has a stream running through it. What Am I? A gorge 4. Rocks and sediments left by a glacier. What Am I? A moraine 5. Includes isolated or spectacular rock outcrops. What Am I? A rock formation 6. A ridge of sand formed in a river or along a shore by the action of waves or currents. What Am I? A sand bar 7. A ridge of sand created by the wind and found in deserts. What Am I? A sand dune 8. An elevation of the earth’s surface and having altitudes greater than a hill. What Am I? A mountain 9. A hollow in the earth, especially one opening more or less horizontally into a hill or mountain, caused by erosion. What Am I? A cave