LAND NAVIGATION (TC 3-25.26)

Question 1

What is the Field Manual for map reading and land navigation?

Answer 1

FM 3-25.26

Question 2

What are the basic colors of a map, and what does each color represent?

Answer 2

*Black - Indicates cultural (man-made) features such as buildings and roads, surveyed spot elevations, and all
labels.
*Red-Brown - The colors red and brown are combined to identify cultural features, all relief features, no surveyed spot elevations, and elevation, such as contour lines on red-light readable maps.
*Blue - Identifies hydrography or water features such as lakes, swamps, rivers, and drainage.
*Green - Identifies vegetation with military significance, such as woods, orchards, and vineyards.
*Brown - Identifies all relief features and elevation, such as contours on older edition maps, and cultivated land
on red-light readable maps.
*Red - Classifies cultural features, such as populated areas, main roads, and boundaries, on older maps.
*Other - Occasionally other colors may be used to show special information. These are indicated in the marginal
information as a rule.

Question 3

What are military symbols?

Answer 3

Figures used to represent types of military organizations, installations, and activities.

Question 4

Where is the Legend of the map found?

Answer 4

Lower left margin

Question 5

What are contour lines?

Answer 5

Imaginary lines on the ground connecting equal elevation, they represent high and low ground elevation.

Question 6

What are 3 types of contour lines?

Answer 6

1. Index
2. Intermediate
3. Supplementary

Question 7

How many Mils are in one Degree?

Answer 7

17.7 mils

Question 8

How many Norths are there on a military map?

Answer 8

1. True north
2. Magnetic north
3. Grid north

Question 9

What shape are the contour lines that indicate a hill?

Answer 9

A hill is shown on a map by contour lines forming concentric circles. The inside of the smallest closed circle is the hilltop.

Question 10

What shape are the contour lines that indicate a saddle?

Answer 10

A saddle is normally represented as an hourglass.

Question 11

What shape are the contour lines that indicate a valley?

Answer 11

Contour lines forming a valley are either U-shaped or V-shaped.

Question 12

What shape are the contour lines that indicate a Ridge?

Answer 12

Contour lines forming a ridge tend to be U-shaped or V-shaped. The closed end of the contour line points away from
high ground.

Question 13

What are 5 major terrain features found on a map?

Answer 13

1. Hill
2. Ridge
3. Valley
4. Saddle
5. Depression

Question 14

What are the 3 minor terrain features found on a military map?

Answer 14

1. Draw
2. Spur
3. Cliff
   FM 3-25.26

Question 15

What are the 2 supplementary terrain features found on a military map?

Answer 15

1. Cut
2. Fill
   FM 3-25.26

Question 16

What is an azimuth?

Answer 16

A horizontal angle, measured in a clockwise manner from a north base line, expressing direction.

Question 17

What is vertical distance?

Answer 17

The distance between the highest and lowest points measured.

Question 18

What is a contour interval?

Answer 18

The vertical distance between adjacent contour lines on a map.

Question 19

What is the distance between grid lines on a combat map?

Answer 19

1 kilometer or 1000 meters

Question 20

How many mils are there in a circle?

Answer 20

6400 mils in 360 degrees

Question 21

Which north is used when using a military map?

Answer 21

Magnetic north when using a compass, and grid north when using the map

Question 22

What do topographic symbols represent?

Answer 22

Man-made and natural features

Question 23

In military symbols, what colors are used for a map overlay and what do they represent?

Answer 23

Blue- Friendly forces
Red-Enemy forces
Black- boundaries
Yellow-contaminated area both friendly and enemy
Green- engineer obstacles, both friendly and enemy

Question 24

How do you figure out a back azimuth?

Answer 24

To obtain a back azimuth from an azimuth, add 180 degrees if the azimuth is 180 degrees or less; subtract 180 degrees
if the azimuth is 180 degrees or more

Question 25

What is a declination diagram?

Answer 25

Shows the angular relationship between the magnetic north, grid north and true north.

Question 26

What is a benchmark?

Answer 26

A man-made marker showing points of elevation.

Question 27

What are parallels of latitude?

Answer 27

Measured distances going north or south of the equator.

Question 28

What does UTM stand for?

Answer 28

Universal Transverse Mercator

Question 29

Name two ways to orient a map?

Answer 29

Use a compass and terrain association

Question 30

What does the term FLOT mean?

Answer 30

Forward Line Of Troops

Question 31

What are the alternate colors on a map and what do they mean?

Answer 31

Gray- alternate color for brown, Yellow- built up areas, and Pink- political boundaries.

Question 32

What does the term intersection mean?

Answer 32

Finding the location of an unknown point by sighting two or more known points.

Question 33

What does the term resection mean?

Answer 33

Resection is the method of locating one’s position on a map by determining the grid azimuth
to at least two well-defined locations that can be pinpointed on the map.

Question 34

Name 3 field expedient methods of determining direction

Answer 34

The shadow-tip method, the watch method, and the North Star method

Question 35

What is the name of the map system that the U.S. uses?

Answer 35

UTM

Question 36

The border line around the edge of the map is called the what?

Answer 36

Neat Line

Question 37

Name the different slopes found on a map.

Answer 37

1. Gentle
2. Steep
3. Concave
4. Convex

Question 38

What are two methods of measuring an azimuth?

Answer 38

Compass and a protractor

Question 39

How close will an eight-digit grid get you to your point?

Answer 39

10 meters

Question 40

How close will a six-digit grid coordinate get you to your point?

Answer 40

100 meters