Land Navigation Flashcards
What publication covers land navigation?
TC 3-25.26,
What is the definition of a map?
a graphic representation of a portion of the earth’s surface drawn to scale as seen from above
What are the different map sizes?
Small, Medium, Large
What are the 8 different kinds of maps?
Planimetric, Topographic, Photomap, Joint Ops Graphics, Photomosaic, Terrain Model, Military City Map, Special Map
Where is the Sheet Name of a map located?
Center top, lower left
Where is the Sheet Number of a map located?
upper right, lower left, center of adjoining sheets diagram
Where is the scale of the map?
upper left margin, center lower margin
What is a declination diagram?
Representation of the angular relationship of true north, grid north, and magnetic north
How are the multiple bar scales on a map different from each other?
different units of measure
Where is the legend of a map located?
lower left margin
What are the colors on a military map and what do they represent?
Black - cultural features such as buildings or roads
Red/Brown - elevation and cultural features on a red-light map
Green - vegetation
Blue - water
Red - cultural features such as populated areas and road
How do you read a map to determine a grid?
right and up
What kind of grid will get you within 10 meters? 100 meters?
8 digit, 6 digit
What is an azimuth?
a horizontal angle measured clockwise from a north base line; used to express direction
what is the GM angle?
The angular difference bettered grid north and magnetic north
What are the 2 methods of intersection?
map and compass method, straightedge method
What are three methods used to determine your position on a map?
Section, resection, modified resection
What does a contour line represent?
An imaginary line on the ground indicating change in elevation
5 major terrain features
Hill, Valley, Ridge, Saddle, Depression
3 types of contour lines
Index, intermediate, supplementary
Three minor terrain features
Draw Spur Cliff
2 supplementary terrain features
Cut, Fill
What is the first step in orienteering?
Orient the map
What does OKOKA stand for?
Observation and Fields of Fire, Cover and Concealment, Obstacles, Key Terrain, Avenues of Approach
(this may be outdated information; double check before committing to memory)
