What does the term 'GM Conversion' refer to in navigation?

The term 'GM Conversion' in navigation specifically refers to converting compass readings to a grid version by accounting for angular differences between magnetic north and grid north. This process is crucial for ensuring that navigators can accurately align their compass readings with the geographical grid system used in mapping. Understanding this conversion is vital for effective navigation, especially in complex terrains or when operating in areas where the magnetic declination may be significant.

Calculating distances between landmarks, finding routes, and determining elevations are all important aspects of navigation, but they do not encompass the specific role of GM Conversion, which focuses on aligning compass and grid coordinates effectively.