1. Watersheds Scott A. Sinex production (modified by Barbara Gage
ESI Sinex

2. A map of streams in an area
Main Stream
streams
tributary to the main stream
tributary to the main stream

3. N Major stream in watershed Drainage divide high spot or ridge
What is general streamflow direction? Any water flowing north?

4. Teachers’ Creek watershedN
Teachers’ Creek watershed
If the stream is Teachers’ Creek, the
watershed is called the Teachers’ Creek
watershed or drainage basin.

5. Drainage Divide
Runoff to the west
Runoff to the east
Looking north up ridge

6. Major streams in watershed
headwaters
Watershed boundary
headwaters
Tributary to major stream
mouth
main channel
mouth

7. N
Area of collection of precipitation

8. N
Watershed
subwatershed
Even smaller subwatershed

9. Nested watersheds airshed watershed Watershed is like a funnel
Container such as Chesapeake Bay

10. Watershed and Airshed of Chesapeake Bay