Across
- 2. a small body of water flowing into a larger one
- 4. the direction opposite to where the river flows
- 5. the land that water runs off of
- 7. tributary of the Potomac River in Fairfax County
- 8. a wide,flat border area belonging to rivers and streams
- 10. an area that is always wet and is located either coastal or inland
- 12. the coordinates of latitude and longitude
- 14. an area of higher ground that separates watersheds
- 16. direction in which the river flows
- 18. where the Earth's surface changes and drops off
Down
- 1. the combination of fresh and salt water
- 3. a system made of tributaries and streams
- 6. where local water flows to
- 9. water that runs off the surface of land or area
- 11. a large area into which all of the water flows into
- 13. the ridge of land between two basins
- 15. where salt and fresh water combine
- 17. land consisting of bogs & marshes
