personnel qualification standard (pqs) - I Marine Expeditionary ...

Land Navigation 117
NOTE: When a Sailor becomes proficient at land navigation, he or she
can accurately determine six and eight-digit grid coordinates by estimation
without the use of a coordinate scale.
117.3 Discuss the map features identified by the colors below:
Red
Classifies cultural (manmade) features, such as populated areas, main roads, and
boundaries, on older maps.
Blue
Identifies hydrography or water features such as lakes, swamps, rivers, and
drainage.
Black
Indicates cultural (man-made) features such as buildings and roads, surveyed spot
elevations, and all labels.
Brown
Identifies all relief features and elevation, such as contours on older edition maps,
and cultivated land on red-light readable maps.
Green
Identifies vegetation with military significance such as woods, orchards, and
vineyards.
Red Brown
The colors red and brown are combined on red-light readable maps to identify
cultural features, all relief features, non-surveyed spot elevations, and elevations
such as contour lines.
117.4 Discuss the map features below using a standard 1:50,000 military map:
MARGINAL INFORMATION
Declination diagram.
This is located in the lower margin of large scale maps and indicates the
angular relationships of true north, grid north, and magnetic north. On
maps at 1:250,000 scale, this information is expressed as a note in the
lower margin. In recent edition maps, there is a note indicating the
conversion of azimuths from grid to magnetic and from magnetic to grid
next to the declination diagram as shown in figure below.
117-9