Map Reading And Land Navigation

What is a map?

Graphical representation of a portion of our earth surface drawing to scale, as seen from above.

What is the purpose of a map?

Provide accurate information about existence, location, and distance between ground features.

Before a map can be used, it must be?

Oriented

How do you orient a Map?

Use a compass in Terrain Association

List the Terrain Features

Hill
Valley
Ridge
Saffle
depression

List the 6 colors on a miliitary map

Black Blue Green
Red
Brown
Red-Brown

What is a black in a map

Man-made features, building, roads, labels, and elevations

What is blue in a military map?

Water and drainage

What is green in a military map?

vegatation with military significance

What is Brown in a military map?

Relief features
elevation
countour line

What is Red-Brown in a military map?

Relief features
Elevation
Countour Lines on Red-LightElevation

3 types of countour lines

Index
Intermediate
Supplementary

What are 3 norths of military map

True north

Magnetic North
Grid North

What is declination

Angular relationship of true north grid north and magnetic north

3 factors for dead reacking

Known starting point, known distance and know azimuth

What is an azimuth?

Horizontal angle directiobn measured in degrees clockwise from north basline

What is back azimuth

the opposite direction of an azimuth

2 methods of holding a compass

Center hold and compass to cheek method

Meters for 6, 8, and 10

6 = 100 meters

8 = 10 meters

10 = 1 meter