Geology /Land Navigation with MAPS
What publication covers MAP READING and Land Navigation?
TC 3-25.26
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Key Terms
Term
Definition
What publication covers MAP READING and Land Navigation?
TC 3-25.26
What is the definition of a map?
A map is a graphic representation of a portion of the earth as it would be seen from above.
What does a map provide?
Information on the location of, and the distance between ground features.
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What are the basic colors of a map, and what does each color represent?
Black - Represents military symbols and text.
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What are contour lines?
Imaginary lines on a map that represent high and low ground elevation.
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What are the 3 kinds of contour lines?
Index, Intermediate, and Suppressive.
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| Term | Definition |
|---|---|
What publication covers MAP READING and Land Navigation? | TC 3-25.26 |
What is the definition of a map? | A map is a graphic representation of a portion of the earth as it would be seen from above. |
What does a map provide? | Information on the location of, and the distance between ground features. |
What are the basic colors of a map, and what does each color represent? | Black - Represents military symbols and text. |
What are contour lines? | Imaginary lines on a map that represent high and low ground elevation. |
What are the 3 kinds of contour lines? | Index, Intermediate, and Suppressive. |
How many mils are in 1 degree? | 17.7 mils |
How many Norths are on a military map? | 3 (Grid, Magnetic, and True North) |
What must be done to a map before it can be used? | The map must be oriented by using a compass and terrain association. |
What are 5 major terrain features found on a map? | Hill, Ridge, Valley, Saddle, and Depression. |
What are the 3 minor terrain features found on a military map? | Draw, Spur, and Cliff. |
What are the 2 supplementary terrain features found on a military map? | Cut and Fill. |
What is an azimuth? | A horizontal angle, measured in a clockwise manner from a north base line, expressing direction. |
What is vertical distance? | The distance between the highest and lowest points measured. |
Which north is used when using a military map? | Magnetic north when using a compass, and grid north when using the map. |
Why is a map so important? | When used correctly, a map can give you accurate distances, locations, and heights, best routes, key terrain features, and cover and concealment information. |
If you find a symbol on a map that is unknown to you, where would you look? | The marginal data, located on the outside lower portion of the map. |
What are the three main map sizes? | Small, medium, and large. |
What should you use if Military Maps are not available? | Substitute maps. |
What does UTM stand for | Universal Transverse Mercator. |
How many miles are there in 1 circle | 6400 mils |
What does the term intersection mean? | The process of finding an unknown point by using 2 or more known points. Your unknown point will be where the 2 known points intersect. |
What does the term resection mean? | Method of finding your location on a map by finding the azimuth of 2 or more locations. Your location will be where they cross. |
Military symbol colors | Blue - Represents friendly forces. |