We all live in a watershed. Part of the hydrological cycle, a watershed represents the portion of a landscape that drains to a particular stream, river or other body of water. In this activity you research and map the watersheds that drain into Tokyo Bay and San Francisco Bay. 1. Gather mapping tools for the activity: a world atlas, regional maps, a globe, satellite or space shuttle images. 2. Identify relevant maps using the links provided below and respond to the following questions, (additional mapping tools may be helpful).
3. Describe the major watershed systems of the Bay region you are studying. What rivers, lakes, and deltas are visible? ____________________________________________ 4. Where do the rivers originate? What mountain ranges and hills surround the watershed? What is the highest point of elevation in the watershed? ____________________________________________ ____________________________________________ 5. What major cities occupy the watershed region? ____________________________________________ ____________________________________________ 6. Create a map of the watershed. a. In pencil, sketch the outlines of the Bay watershed. Include mountains, rivers, major creeks, lakes, and the Bay itself. b. Determine which direction is north, and draw a compass rose in the southeast corner of your sketch. c. Estimate the scale of the map in miles (or kilometers). Add a scale next to your compass rose. d. Add geographical features of relevance: major cities, dams and reservoirs, wetlands, the highest point of elevation. After completing your sketch, take time to clean up the map and highlight features of interest. Add color and symbols to enhance a readers understanding. Complete the activity by writing a short narrative describing the image from space. Call attention to some of the features you have labeled on your map and explain their significance. Links Tokyo Bay Boat
Trip Down the Sumida River San Francisco Bay Environmental
Planning and Geographic Information Systems, University of California San
Francisco Estuary Institute US
Geological Survey
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