Map Reading & Land Navigation (TC 3-25.26)

What covers Land Navigation?

Training Circular (TC 3-25.26)

What is the definition of a map?

graphical representation of a portion of the Earth’s surface drawn to scale

Where would you find useful information to read a map?

The legend

What are the three map sizes?

small, medium, and large

What are the colors of a military map and what do they represent?

Black: man-made features

Red-Brown: Identifies cultural features

Blue: water features; lakes

Green: identifies vegetation, woods

Brown: all relief features and elevation

What are the three types of North?

True North (North Pole); Magnetic (Compass); Grid (Map)

What is the rule for reading maps?

Right and up

What are the two techniques for using lensatic compass?

center-hold technique

Compass-to-check technique

What are the five major terrain features?

Hill, valley, ridge, saddle, depression

What are the three minor terrain features?

Cliff, draw, spur

What are the two supplementary terrain features?

Cut and fill

What are the three land navigation methods?

Dead reckoning

Moving by terrain association

Combination of techniques

What is the first thing you do when you get a map?

Orientate it - when the north/south on the map aligns with the north/south on the ground

How many degrees are in a compass?

360

What are the different types of contour lines?

Index, Intermediate, Supplementary

What is an azimuth?

horizontal angle measured clockwise from a north base line

What is the back azimuth?

the opposite direction of an azimuth

What are ways to determine your location on a map?

Resection, Modified Resection and Intersection

How many mils are in a compass?

6400

How many mils are in one degree?

17.7