In the intersection method, what is the result of tracing two back azimuth lines from two known features?

In the intersection method, what is the result of tracing two back azimuth lines from two known features?

• A. Your current grid coordinate
• B. The distance to each feature
• C. The bearing to the features
• D. The coordinates of the two features

Answer: (A)

Intersection method locates your position by using back azimuths from two known landmarks. A back azimuth is the direction from a feature toward you. If you plot a line from each feature along its back azimuth, those two lines will cross where you actually are. That crossing point on the map gives your current grid coordinate. The other options don’t fit because distance to the features isn’t what you’re solving for with this method, and you’re not determining the features’ coordinates—they’re already known. The bearing to the features from your position would be the forward bearings, not the back azimuths used to create the intersecting lines.

Intersection method locates your position by using back azimuths from two known landmarks. A back azimuth is the direction from a feature toward you. If you plot a line from each feature along its back azimuth, those two lines will cross where you actually are. That crossing point on the map gives your current grid coordinate. The other options don’t fit because distance to the features isn’t what you’re solving for with this method, and you’re not determining the features’ coordinates—they’re already known. The bearing to the features from your position would be the forward bearings, not the back azimuths used to create the intersecting lines.