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
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
(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.