Map Reading

1
Map Reading
2
Objectives

• Identify marginal information and topographic
  symbols on a military map
• Identify the five major, three minor and two
  supplemental terrain features on a military map
• Determine grid coordinates on a military map
• Determine elevation using a military map

3
Marginal Information
Tenino

• Sheet Name
• Sheet Number
• Adjoining Map Sheets Diagram
• Stock Number

Edition 7-DMATC Series V791 Sheet 1477 IV
4
Marginal Information (2)

• Special Notes
• Declination Diagram

5
Marginal Information (3)

• Scale
• Bar Scales
• Contour Interval Notes
• Grid Reference Box

6
Marginal Information (4)

• Map Agency

• Legend

7
Topographic Symbols
8
Colors on a Military Map
(IAW FM 3-25.26 (C1), dated 30 August 2006)

• Black Indicates cultural (man-made) features
  such as buildings and roads, surveyed spot
  elevations, and all labels.
• Red-Brown The colors red and brown are combined
  to identify cultural features, all relief
  features, non-surveyed spot elevations, and
  elevation such as contour lines on red-light
  readable maps.
• Blue Identifies hydrography or water features
  such as lakes, swamps, rivers, and drainage.
• Green Identifies vegetation with military
  significance such as woods, orchards, and
  vineyards.
• Brown Identifies all relief features and
  elevation such as contours on older edition maps
  and cultivated land on red-light readable maps.
• Red Classifies cultural features, such as
  populated areas, main roads, and boundaries, on
  older maps.
• Other Occasionally, other colors may be used to
  show special information. These are indicated in
  the marginal information as a rule.

9
Contour Lines
10
Contour Intervals
11
Elevation
12
Elevation (2)
13
Terrain Features

• Five Major
• Ridge
• Hill
• Saddle
• Valley
• Depression

• Three Minor
• Draw
• Spur
• Cliff
• Two Supplemental
• Cut
• Fill

14
Ridge
15
Ridge
16
Ridgeline
17
Ridgeline
18
Hill
19
Hill
20
Saddle
21
Saddle
22
Valley
23
Valley
24
Depression
25
Depression
26
Spur
27
Spur
28
Draw
29
Draw
30
Cliff
31
Cliff
32
Cut
I
33
Cut
34
Fill
35
Fill
36
Protractor(GTA 5-2-12)
37
Determining Grid Coordinates

• Select the correct scale on the protractor
• Place the horizontal scale on the grid line with
  the 0 mark at the lower left-hand corner of the
  grid square.
• Slide scale right into until the vertical scale
  intersects the center of your plot point
• Read right then read up

38
Four-Digit Grid Coordinates
1) Identify the 100, 000 Grid Square
Identification Letters (in the Grid Reference
Box). 2) Read Right to the last grid before your
point. 3) Read Up to the last east-west grid
below or before your point.
Read Right
39
Zero 0 Mark
Place your protractor scale on the Zero-Mark( )
40
Six-Digit Grid Coordinates
41
Eight-Digit Grid Coordinates
42
Closing

• Summary
• Questions
• Next Lesson 03b, Land Navigation
• Review Map Reading chapter in student text and
  answer critical reasoning questions
• Bring the following to class
• Tenino map sheet
• Protractor
• Paper and pencil