TC 3-25.26 Flashcards
What is a Map?
A graphic representation of a portion of the Earth’s surface drawn to scale, as seen from above.
Which publication covers Land Navigation?
TC 3-25.26
What is the purpose of a map?
To provide accurate information about the existence, location, and distance between ground features.
What are the major terrain features?
Hill, valley, ridge, saddle, depression.
What are the colors on a military map, and what do they represent?
Black–man-made features, buildings and roads.
Blue–water features
Green–Vegetation
Red–roads, cultural features
Brown–relief features, cultivated land
Red-brown–contour lines, cultural and relief features.
What are contour lines?
They show relief and elevation.
List the 3 Norths on a military map.
True North
Magnetic North
Grid North
List the 3 minor terrain features.
Draw, Spur, Cliff
What is the distance between grid lines on a combat map?
1Km
Name two ways to hold a compass.
Compass-to-cheek method.
Center-hold method
What is a declination diagram?
Angular relationship between magnetic, grid, and true north.
How do you figure out a back-azimuth?
Add or subtract 180 degrees
How close will an eight digit grid get you to your point? 6 digit? 4 digit?
10m
100m
1000m
Where does a map generally get its name?
Largest settlement or natural feature in the area
