Military Grid and Map Symbols
Objectives

To use the militray grid for determining location (using both the four and six digit methods).
To use a variety of map symbols.

Let's look at the militray grid as a way of determining location on a map. Then you will practice recognizing various symbols on a topographic map.

Military Grid

A method to locate points on a map.

With this method, a system of numbered lines is superimposed on a map and position is stated by quoting the numbers of the lines that intersect at the point in question.

For instance, let's utilize the military grid to determine which grid square the church is located in below.

A tip for remembering how to determine the military grid coordinates is: WS.

This means to go to the Western edge of the grid square that the object is in first. Then from that western edge, go up or down until you come to a number. On some maps, the number may not be posted at both the top and bottom. In this case though, going up or down yields the number 91. These are the first two digits for the square that the church is in.

Secondly, go to the Southern edge of the grid square that the object is in. From that southern edge, go across until you come to a number. In this case, the number is 94. This represents the third and fourth digits for the square that the church is in.

Hence, the church is in grid square 9194.

To state where the church is located in that grid square, you need to use the six digit military grid method.

With this method, you start out exactly the same way as the four digit method. Go to the Western edge and obtain the first two digits (i.e. 91). Then ask yourself, how far over from that western edge is the church? To determine this, picture the grid square as if it was divided into ten equal vertical sections.

The church is 6 sections over from the Western edge of the grid square. Therefore, the first three digits are 916.

Now, to obtain the fourth and fifth digits, do the same as you did for the four digit method. Go to the Southern edge of the grid square and across (i.e. 94). Then ask yourself, how far up from the southern edge is the church? To determine this, picture the grid square as if it was divided into ten equal horizontal sections.

The church is 5 sections up from the Southern edge. Therefore, the last three digits are 945.

In summary, the church is located at 916945.

Map Symbols

Download and save the file containing select Canadian Topographic Map Symbols. You will need to be familiar with these symbols throughout the course. For convenience sake, you may wish to print them out.



Assignment Work

1) Download and open the following topographic map.

2) Download, print out, and complete the Military Grid and Map Symbols exercise.

3) Check your answers using the key.

©www.coolschool.ca
Press the button on the Action menu to proceed.