Flashcards in Map Reading and Land Navigation, TC 3-25.26 & FM 3-25.26 Deck (143)
What Publication Covers Map Reading and Land Navigation?
15 Nov 2013
What does TC 3-25.26 Cover?
Map Reading Land Navigation
What is the definition of Cartography?
the art and science of expressing the known physical features of the earth graphically by maps and charts
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 does a map provide?
information on the existence, the location of, and the distance between ground features, such as populated places and routes of travel and communication; It also indicates variations in terrain, heights of natural features, and the extent of vegetation cover
Who is responsible for securing maps for the unit?
The G2/S2 section
What should you do with a map that is in danger of being captured?
Why should you destroy a map that is in danger of being captured?
Because it could contain troop movements or positions of friendly soldiers
How many different sizes of maps are there?
What are the different map sizes?
1. Small; Those maps with scales of 1:1,000,000
2. Medium; Those maps with scales larger than 1:1,000,000 but smaller than 1:75,000
3. Large; Those maps with scales of 1:75,000 and larger
How many different types of maps are there?
What are the Different Types of Maps?
1. Planimetric Map
2. Topographic Map
4. Joint Operations Graphics
6. Terrain Model
7. Military City Map
8. Special Maps
What is a Planimetric Map?
map that presents only the horizontal positions for the features represented
What is a Topographic Map?
a map that portrays terrain features in a measurable way (usually through use of contour lines), as well as the horizontal positions of the features represented
What is a Photomap?
a reproduction of an aerial photograph upon which grid lines, marginal data, place names, route numbers, important elevations, boundaries, and approximate scale and direction have been added
What is a Joint Operations Graphics?
maps based on the format of standard 1:250,000 medium-scale military topographic maps, but they contain additional information needed in joint air-ground operations
What is a Photomosaic?
an assembly of aerial photographs that is commonly called a mosaic in topographic usage
What is a Terrain Model?
a scale model of the terrain showing features, and in large-scale models showing industrial and cultural shapes
What is a Military City Map?
a topographic map (usually at 1:12,550 scale, sometimes up to 1:5,000), showing the details of a city
What is are Special Maps?
These are maps for special purposes, such as trafficability, communications, and assault maps
What should you use if Military Maps are not available?
What can Substitute maps range from?
substitute maps can range from foreign military or commercial maps to field sketches
How many types of Substitute maps are there?
What are the Seven different types of Substitute Maps?
1. Foreign Maps
3. Geographic Maps
4. Tourist Road Maps
5. City/Utility Maps
6. Field Sketches
7. Aerial Photographs
What are Foreign Maps?
maps that have been compiled by nations other than our own. When these must be used, the marginal information and grids are changed to conform to our standards if time permits
What are Atlases?
collections of maps of regions, countries, continents, or the world. Such maps are accurate only to a degree and can be used for general information only
What are Geographic Maps?
maps give an overall idea of the mapped area in relation to climate, population, relief, vegetation, and hydrography
What are Tourist Road Maps?
maps of a region in which the main means of transportation and areas of interest are shown
What are City/Utility Maps?
maps of urban areas showing streets, water ducts, electricity and telephone lines, and sewers