1. Describe a watershed in your own words.
2. Give two examples of how factors can
affect a watershed along its course.
3. On each map put an arrow that points
La Costa Quadrangle Section A.
4. In the southwest corner find Mt. Allison
and label it. (hint: 2286’)
5. Draw the trace of the Mission Creek headwater. Remember this
continues onto the Niles Quadrangle.
6. Circle Bench Mark (BM) 533. What is a benchmark?
7. Circle the area of Haynes Gulch. What is a gulch and how do you
know from the topography that this is a Gulch? (Hint: look at the
8. Draw a line on the trace of high power lines. (Hint: find the
9. Circle Leyden Creek. Is the water flowing in the same direction
as Mission Creek or the opposite direction? How do you know?
10. Trace the line of the “Aqueduct.” What is an aqueduct?
Niles Quadrangle Section B.
11. Trace Mission Creek (hint: parallels Mill Creek Road in some
places) to St. Joseph’s School, near Mission Blvd.
12. Circle Mission Reservoir. What is this feature?
13. Circle Mission Peak. What is the altitude of Mission Peak?
14. Trace Aqua Caliente Creek. Is it flowing into Mission Creek?
How do you know?
15. Trace the electricity lines. This power comes from generators
near Yosemite. These lines help move the electricity to the city.
16. Is Mission Creek east or west of Mission Peak?
17. Circle Benchmark 192.
18. Trace the line that shows the city limits of Fremont.
19. Circle Warm Springs. Trace Aqua Caliente Creek. This area has
warm water. Why?
Niles Quadrangle Section C.
20. Circle Stivers Lagoon and Lake Elizabeth.
21. Trace Mission Creek to Stivers Lagoon. Near Stivers it
splits into 2 Creeks, Irvington and Laguna Creek. Trace the split
into the two creeks.
22. Trace Vargas Creek. Where does it meet Mission Creek?
23. Circle Hopkins Junior High, Chadbourne Elementary, and Mission
San Jose High School.
24. Gomes Elementary School is not written on the map but if you
continue Mission Creek toward Lake Elizabeth you will see a large
open area. Label that Gomes Elementary School.
25. Circle the Irvington Pumping Station. Trace a line of the
double dashed lines. This is the trace of Hetch Hetchy water line
that brings water from Yosemite area to San Francisco. Fremont uses
some of this water in their drinking supply.
26. Circle Benchmark 70 and 93.
27. Trace the high voltage electricity
lines (hint: double dashed lines with dots).