Lab 2: USGS Topographic Maps

Analysis of 7.5 Minute Map of Beverly Hills

1. What is the name of the quadrangle?

a. The name of the quadrangle is “Beverly Hills Quadrangle” which is located in Los Angeles, California.

2. What are the names of the adjacent quadrangles?

a. The names of the adjacent quadrangles are: Canoga Park (1), Van Nuys (2), Burbank (3), Topanga (4), Hollywood (5), Venice (7), Inglewood (8).

3. When was the quadrangle first created?

a. The quadrangle was first created in 1995.

4. What datum was used to create your map?

a. The datum used to create this map was the National Geodetic Vertical Datum of 1927 and the North American Datum of 1983.

5. What is the scale of the map?

a. The scale of the map is 1:24,000

6. At the above scale, answer the following:

a. 5 centimeters on the map is equivalent to how many meters on the ground?

i. RF = map/ground = 0.5 cm X 1/24,000 X 1m/100cm = 1200 meters

b. 5 inches on the map is equivalent to how many miles on the ground?

i. RF= map/ground = 1(5in)/24,000(5in)à 5in:120,000inà120,000in/63,360in = 1.89 miles

c. One mile on the ground is equivalent to how many inches on the map?

i. RF=map/ground = 63,360in/1mile X 1/24,000 = 2.64in

d. Three kilometers on the ground is equivalent to how many centimeters on the map?

i. RF= map/ground = 3km X 100,000cm/1km X 1/24,000= 12.5cm

7. What is the contour interval on your map?

a. The contour interval on my map is 20 feet.

8. What are the approximate geographic coordinates in both degrees/minutes/seconds and decimal degrees of:

a. The Public Affairs Building;

DD: 34.07°N, -118.43°W;

D/M/S: 34°04’12”N, -118°25’48”W

b. The tip of Santa Monica pier;

DD: 34.00°N, -118.50°W;

D/M/S: 34°0’28”N, -118°30’60”

c. The Upper Franklin Canyon Reservoir;

DD: 34.12°N, -118.41°W;

D/M/S: 34°7’12”N, -118°24’36”W

9. What is the approximate elevation in both feet and meters of:

a. Greystone Mansion (in Greystone Park);

570 ft; 170.736m

b. Woodlawn Cemetery;

140ft; 42.672m

c. Crestwood Hills Park

660ft; 201.17m

10. What is the UTM zone of the map?

a. The UTM zone of the map is zone 11.

11. What are the UTM coordinates for the lower left corner of your map?

a. The UTM coordinates for the lower left corner of my map are 3763000 northing and 362000 easting.

12. How many square meters are contained within each cell (square) of the UTM gridlines?

a. 1,000,000 square meters are contained within each cell of UTM gridlines.

13. Obtain elevation measurements, from west to east along the UTM northing 3771000, where the easting of the UTM grid intersect the northing. Create an elevation profile using these measurements in Excel (hint: create a line chart). Figure out how to label the elevation values to the two measurements on campus. Insert your elevation profile as a graphic in your blog.

a.

Figure 1. Elevation profile from west to east along the UTM northing 377100, where the eating of the UTM grid intersect the northing. The points that have a yellow border are the two measurements that include the UCLA campus.

What is the magnetic declination of the map?

a. The magnetic declination is 14°

15. In which direction does water flow in the intermittent stream between the 405 freeway and Stone Canyon Reservoir?

a. The water in the intermittent stream between 405 freeway and Stone Canyon Reservoir is flowing in the North to South direction.

16. Crop out (ie. Cut and paste) UCLA from the map and include it as a graphic on your blog.

Figure 2. Graphic of UCLA cropped from the 7.5 minute Beverly Hills Quadrangle.

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