Figure 5-36.--Intersection using map and compass.
5. Move to a second known position (Point B) from
map and compass method of intersection. (See fig.
which the unknown point is visible. Locate this position
5-36.)
on the map and again orient the map using the compass.
1. Orient the map using the compass.
6. Repeat Steps 3 and 4 above.
2. Locate and mark your position (Point A) on the
7. As a check on accuracy, move to a third position
map.
(Point C) and repeat Steps 1 through 4 above.
3. Measure the magnetic azimuth to the unknown
8. The point where the lines cross is the location of
position; convert it to grid azimuth.
the unknown position. Using three lines, you sometimes
form a triangle instead of an intersection. This is called
4. Draw a line on the map from your position on
the TRIANGLE OF ERROR. If the triangle is large,
this grid azimuth.
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