1. Orient the map on a flat surface by the inspection method.

2. Locate and mark your position on the map.

3. Lay a straightedge on the map and place one end at the position of the user (Point A) as a pivot point. Then rotate the straightedge until the unknown point is sighted along the edge.

4. Draw a line along the straightedge.

5. Repeat the above procedures at Point B, and for a check on accuracy, at a third position.

6. The intersection of the lines is the location of unknown Point C.

Resection

Locating the unknown position of the user by sighting on two or three known features is called

Figure 5-38.-Resection.

resection (fig. 5-38). Resection can be done with or without a compass.