FM 3-25.26 MAP READING AND LAND NAVIGATION

Field Manual No. 3-25.26

*FM 3-25.26 (FM 21-26)

Headquarters Department of the Army Washington, DC , 20 July 2001

FM 3-25.26

MAP READING AND LAND NAVIGATION

Table of Contents

PREFACE

Part One MAP READING

Chapter 1

TRAINING STRATEGY

Building-Block Approach Armywide Implementation Safety

Chapter 2

MAPS

Definition Purpose Procurement Security Care Categories Military Map Substitutes Standards of Accuracy

Chapter MARGINAL INFORMATION AND SYMBOLS 3

Marginal Information on a Military Map Additional Notes Topographic Map Symbols Military Symbols Colors Used on a Military Map

Chapter 4

GRIDS

Reference System Geographic Coordinates Military Grids United States Army Military Grid Reference System Locate a Point Using Grid Coordinates Locate a Point Using the US Army Military Grid Reference System Grid Reference Box Other Grid Systems Protection of Map Coordinates and Locations

Chapter 5

SCALE AND DISTANCE

Representative Fraction Graphic (Bar) Scales Other Methods

Chapter 6

DIRECTION

Methods of Expressing Direction Base Lines Azimuths Grid Azimuths Protractor Declination Diagram Intersection Resection Modified Resection Polar Coordinates

Chapter 7

OVERLAYS

Purpose Map Overlay Aerial Photograph Overlay

Chapter 8

AERIAL PHOTOGRAPHS

Comparison With Maps Types Types of Film Numbering and Titling Information Scale Determination Indexing Orienting of Photograph Point Designation Grid Identification of Photograph Features Stereovision

Part Two LAND NAVIGATION

Chapter 9

NAVIGATION EQUIPMENT AND METHODS

Types of Compasses Lensatic Compass Compass Handling Using a Compass Field-Expedient Methods Global Positioning System

Chapter 10

ELEVATION AND RELIEF

Definitions Methods of Depicting Relief Contour Intervals Types of Slopes Percentage of Slope Terrain Features

Interpretation of Terrain Features Profiles

Chapter 11

TERRAIN ASSOCIATION

Orienting the Map Locations Terrain Association Usage Tactical Considerations Movement and Route Selection Navigation Methods Night Navigation

Chapter 12

MOUNTED LAND NAVIGATION

Principles Navigator's Duties Movement Terrain Association Navigation Dead Reckoning Navigation Stabilized Turret Alignment Navigation Combination Navigation

Chapter 13

NAVIGATION IN DIFFERENT TYPES OF TERRAIN

Desert Terrain Mountain Terrain Jungle Terrain Arctic Terrain Urban Areas

Chapter 14

UNIT SUSTAINMENT

Set Up a Sustainment Program Set Up a Train-the-Trainer Program Set Up a Land Navigation Course

Appendix FIELD SKETCHING

A

Appendix MAP FOLDING TECHNIQUES B

Appendix UNITS OF MEASURE AND CONVERSION FACTORS C

Appendix JOINT OPERATIONS GRAPHICS D

Appendix EXPORTABLE TRAINING MATERIAL E

Appendix ORIENTEERING F

Appendix M2 COMPASS G

Appendix ADDITIONAL AIDS H

Appendix FOREIGN MAPS I

Appendix GLOBAL POSITIONING SYSTEM J

Appendix PRECISION LIGHTWEIGHT GLOBAL POSITIONING SYSTEM RECEIVER K

GLOSSARY REFERENCES AUTHENTICATION

DISTRIBUTION RESTRICTION: Approved for public release: distribution is unlimited.

*This publication FM 3-25.26 supersedes FM 21-26, 7 May 1993.

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