TOPOGRAPHIC MAPS and AERIAL PHOTOS

**BRING COLORED PENCLS, RULER, AND PROTRACTOR TO LABS 4 AND 5**

A. Read pp. 50 - 58 and p. 62 in Z&R. Do the exercise on the next page and Exercise 8 on p. 61 (Z&R) and Exercise 9 (do #1 only) on p. 64 (Z&R).
(Note: these pages refer to the 7th edition of Z&R, and not the 8th edition.)

B.	Refer to the topographic map of the Santa Cruz quadrangle provided in lab to
answer the following questions: 

	1.	What is the scale of the map?	as a ratio __________________________

		in inches to feet_____________________

	2.	What is the contour interval of the map?_________________________________

	3.	What is the maximum relief of the map area?______________________

	4.	What is the maximum elevation of UCSC?________________________

	5.	What is the location of the Beach Boardwalk?______________________

Progressive tectonic uplift during the Quaternary has raised several marine terraces
high above present sea level in the Santa Cruz area.  The lowest terraces are the
youngest; they are successively older and more dissected by streams at higher
elevations.

	6.	Construct a cross-section profile from Terrace Point west of Santa Cruz to the
5Õ mark in the middle of the top of the map, just east of the words ÒState of
California.Ó  Use the graph paper provided.  Let the bold lines on the map represent
100-foot contours and every-other fine line the 20-foot contours.  What is the
vertical exaggeration of your profile (Z&R p. 62)?  (Write it on your profile.)

	7.	Try to identify all the terraces you can along the profile.  This becomes
increasingly difficult at the higher elevations!

C.  After you have read pp. 68 - 72, pp. 78 - 80, pp. 100 - 101 (Z&R), do the following
exercises:

Exercise 12B.	Stream gradients and drainage divides.  (p. 82)

Exercise 15A.	Mass balance of an alpine glacier.  (p. 102 - 103)