To convert a grid azimuth into a magnetic azimuth, which section of the map should be consulted?

To convert a grid azimuth into a magnetic azimuth, the appropriate section of the map to consult is the declination diagram. The declination diagram provides essential information about the difference between grid north and magnetic north, known as magnetic declination.

This diagram typically displays the angle difference and the direction to adjust your grid azimuth accordingly to obtain the magnetic azimuth. Understanding the relationship between these two directions is crucial for navigating accurately, as variations in declination can impact your compass readings based on your geographic location.

In contrast, the legend explains the symbols and colors used on the map, which does not assist in making azimuth conversions. The scale indicates distances but does not address angular measurements related to navigational headings. Topographic lines show the terrain's elevation and shapes; however, they do not provide information related to the alignment of magnetic or grid north. Thus, the declination diagram is the vital portion of the map for achieving the correct conversion between these two types of azimuth.