Reading Map Coordinates

SUMMARY

This activity was completed in class.

1. What is the Reference System for the map?
   
   NAD 1927 UTM Zone 12
   
   

2. What is the map scale?
   
   1:24,000
   
   

3. Give the location of Little Island in
   
   

   1. Degrees-Minutes-Seconds,
      
      N 43° 51’ 30”, W 111° 53’ 30”
      
      

   2. UTM, and
      
      12 N 4,846,485.5 W 429,428.5
      
      

   3. Public Land Survey Notation.
      
      NE 1/4, NW 1/4, Sec 17, T6N, R39E
      
      

4. How would you convert a UTM location on the map from NAD 1927 datum to NAD 1983 datum?
   
   To convert NAD 1927 to NAD 1983, move the projection line 12 meters north and 65 meters east
   
   

5. Explore one of the resources below to see where to download topographic maps of the US for free. If you are interested in finding topographic maps for a different part of the world, search for a different source.
   
   I explored topoView. It’s a great resource for finding topographic and geologic maps for different areas of the US.