Lab 2 - USGS Topographic Maps

The 7.5 Minute Map

1. Beverly Hills
2. Canoga Park, Van Nuys, Burbank, Topanga, Hollywood, Venice, Inglewood
3. 1966
4. Horizontal datums: North American Datum of 1927 (NAD 27) and
North America Datum of 1983 (NAD 83)
Vertical datum: National Geodetic Vertical Datum of 1929
5. 1:24000
6. a) 1/24000 = 5 cm/x
x = 5 cm * 24000 = 120,000 cm = 1,200 m
b) 1/24000 = 5 in/x
x = 5 in * 24000 = 120,000 in
120,000 in * (1 mi/63360 in) = 1.894 mi
c) 1/24000 = x/1 mi
x = 1/24,000 mi
1/24,000 mi * (63360 in/1 mi) = 2.64 in
d) 1/24000 = x/3 km
x = 1.25 * 10^-4 km
(1.25 * 10^-4 km) * (100,000 cm/1 km) = 12.5 cm
7. 20 feet
8. a) 34°4'30" (34.075°) N and 118°26'15" (118.438°) W
b) 34°00'30" (34.008°) N and 118°30'00" (118.5°) W
c) 34°07'00" (34.117°) N and 118°24' 30" (118.408°) W
9. a) 580 ft = 176.784 m
b) 140 ft = 42.672 m
c) 700 ft = 213.36 m
10. UTM Zone 11
11. 361,500 m Easting and 3,763,000 m Northing
12. 1,000,000 m^2
13.

















14. +14°
15. South
16.