LandNav Flashcards
What is the APD for LandNav and Map reading
FM 3-25.26
What are the basic colors of a map and what does each color represent
Green -Vegetation
Blue - Water
Black - Man made objects such as building
Red - Cultural features Such as populated areas
Brown - Identifies all features and elevation
Red/Brown - Combined to identify all cultural features, relief features, on red light readable maps
What are military symbols
Figures used to represent military symbols, installations, and activities.
Where is the legend of the map found
The lower left margin
What are contour lines
LInes that indicate elevation on a map
What are the three types of contour lines
Immediate, Supplementary, Index
How many mils are in one degree
17.7 mils
How many Norths are there on a military map
- Grid, Magnetic, True
What shape are the contour lines that indicate a hill
The contour lines form concentric circles, with the middle being the top of the hill
What shape are contour lines that indicate a saddle
An hourglass
What shape are contour lines that indicate valley
They are either U or V shaped
What shape are the contour lines that indicate a ridge
The contour lines are either U or V shaped and the closed end of the contour lines poitns away the high ground.
What shape are the contour lines that indicate a depression?
Closed contour lines that have tick marks pointed towards the low grounds
What shape are the contour lines that indicate a draw
They contour lines are U shaped or V shaped pointed towards high ground
What shape are the contour lines that indicate a spur
The contour lines are U or V shaped pointed away from high ground
What are the contour lines that indicate a cliff
Show by contour lines to be very close together or even touching
What shape are the contour lines that indicate a cut?
The contour lines extends the length of the cut and has tick marks that extend from the cutline to the road bed if the scale level of the map permits this level of detail
What shape are the contour lines that indicate a fill?
The contour line extends the length of the filled area and has tick marks that point towards lower ground,
What must be done to a map before it can be used?
It must be oriented
What are the 5 major terrain features found on a map
Hill Valley Ridge Saddle Depression
What are the three minor terrain features found on a map
Draw Spur Cliff
What are the two supplementary terrain features found on a map?
Cut Fill
What is a map
An aireal graphic representation of a portion of the earth.
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
What is a contour interaval
The verticle distance between adjacent countour lines on a map
What is the distance between grid lines on acombat map
1000 meters
How many mils are there in a circle?
6400 mils
What North is used when using a military map
Magnetic when using a compass, grid when using the map
How would you hold a lensatic compass?
Away from metal, level and firm
