Royal Army College

Lesson Overview

This lesson introduces one of the oldest skills of soldiering: finding your way across open country where roads and signposts run out. For the Royal Kaharagian Army this is a basic skill of every soldier, not a specialist art, because the Army's likeliest work depends on it. To search a hillside for a missing walker, move through a flooded valley, or work a fire line, a soldier must first navigate to the place and across it. You will meet the map, the compass, and the reading of ground from its shape, along with the firm principle that map and compass come first and a satellite receiver is only an aid that can fail. It closes with a first word on fieldcraft, the craft of operating in the field as you move.

This is the knowledge layer. Reading a grid reference on the page is not the same as pinpointing a feature on the ground with a real sheet in cold hands, and following a printed line is not holding a bearing across broken country in poor light. The real skills are built and certified on the ground. What you learn here is the why and the shape of it, so that when you take a map onto the ground you already understand what you are looking at.

By the end you will be able to explain why a soldier must be able to find their way, describe what a map is and give a grid reference, explain in outline what a compass and a bearing are, read the shape of the ground from its contours, state why the map and compass come before any device, and say what to do when you become unsure of where you are.

This is your first meeting with the subject. It is set out in full in Basic Training Manual Modules 04 and 13 and taught in depth in the Phase Two course on Navigation and Fieldcraft, where the skills are practised with a real map and compass on real ground and certified in person.

Key Terms

Navigation: knowing where you are and how to get to where you must be.
Map scale: the relationship between distance on the map and distance on the ground, written as a ratio such as 1:50,000.
Conventional sign: an agreed symbol, with its colour, that shows a real feature on the map, explained in the legend.
Grid: the network of numbered lines printed over the map, dividing it into squares, that lets any point be named.
Grid reference: a precise location given from the map's grid, read eastings before northings.
Bearing: a measured direction, in degrees from north, used to hold a line of travel without drifting.
Magnetic variation: the small angle by which the compass needle differs from the map's grid north, applied using the figure given for the day.
Contours: the lines on a map that show the shape and steepness of the ground.
Fieldcraft: the disciplined craft of moving, concealing yourself, and observing in the field.

Why a soldier must find their way

A soldier who cannot find their way is a passenger, not a navigator, and may become a casualty. Search and rescue, disaster relief, and every field task begin with reaching the ground and moving across it under control. A lost soldier cannot complete the task, cannot reach the people who depend on them, cannot avoid danger they cannot locate, and cannot even report a position they do not know. Finding your way is a safety skill and a duty to the team.

The navigator must also be honest, because navigation is one of the few skills where a quiet mistake is more dangerous than an obvious one. A weapon that fails, fails in your hands and you know it. A position read wrongly feels exactly as confident as one read rightly, and carries you further off with every step. The most dangerous error is the one that goes unchallenged. When you are unsure, you stop, you say so, and you fix your position before going on. The soldier who admits doubt early loses a few minutes; the one who pushes on and hopes can lose a search, a rendezvous, or a life.

The map

A map is not a picture but a scaled drawing of the ground seen from above, marked with agreed signs. Imagine looking straight down on the country from high overhead: that view, shrunk to fit the paper and drawn in a fixed set of symbols, is the map. Because everything is shrunk by the same amount, every measurement on it converts straight back to the ground.

The first thing to read on any map is its scale. On a 1:50,000 map, one centimetre is fifty thousand centimetres of real country, that is 500 metres. On a 1:25,000 map, one centimetre is 250 metres, so the sheet shows twice the detail over half the ground. Confirm the scale before you read anything else. Confuse the two and you will plan a march in half the time and effort it truly needs, and arrive late, spent, or in the wrong place.

A map cannot draw every feature as it truly looks and stay legible, so it shows the ground through conventional signs, agreed symbols whose colours carry most of the meaning. Learn the colour code first and half the map reads itself: blue is water, among the most reliable detail on the sheet because water lies where the ground compels it; green is vegetation, which matters for cover and for the going underfoot; brown is relief, the shape and height of the ground, drawn as contour lines; and the routes of movement, roads, tracks, and paths, are lines coded by their class. Buildings and landmarks all have their signs, and the legend is always the authority: where a sign is unfamiliar, look it up rather than guess. Over the whole drawing runs a grid of squares that lets you describe any point precisely.

The grid and the grid reference

The most useful thing on a military map, after the ground itself, is the grid. The numbered lines printed over the sheet cross to divide it into squares of equal size, each one kilometre across on the standard sheets. They let any point be named exactly, so a position can be passed by voice or radio and plotted by another soldier with none of the vagueness of "near the wood".

The order in which you read the lines is the whole skill. The eastings run up the page, numbered left to right, increasing as you move east; the northings run across the page, numbered bottom to top, increasing as you move north. To give a grid reference, always read the easting first and the northing second. Two old aids say the same thing: along the corridor, then up the stairs, or simply right, then up. Reverse the two and you name a different point entirely, often far off, so fix the discipline of eastings before northings early and never let it slip.

A reference can be given to the precision the task needs by adding figures. A four-figure reference, such as 27 61, quotes two figures for the easting and two for the northing and names the one-kilometre square those lines meet at. A six-figure reference, such as 274 612, divides that square by eye into tenths and adds a third figure to each, naming a point to within a hundred metres, the precision used to mark a find. You count the easting and estimate its tenths into the square, then do the same for the northing.

   Northings
   (read 2nd, "up the stairs")
    62 +----+----+----+----+
       |    |  P |    |    |     4 figures   27 61    = the 1 km square
    61 +----+----+----+----+     6 figures   274 612  = a point to 100 m
       |    |    |    |    |
    60 +----+----+----+----+     P: along to easting 27, just past
       |    |    |    |    |        four-tenths, then up from northing 61,
    59 +----+----+----+----+        about one-tenth  ->  274 612
       26   27   28   29   30
   Eastings (read 1st, "along the corridor")

A simple discipline removes most mistakes: repeat the reference aloud to a partner before you send it. A clear grid reference is a shared language anyone can check, exactly what a search or a rescue needs. The full art, reading the tenths off accurately with the small scale on a compass baseplate and the lettered prefix that makes a reference unique across a whole country, waits for you in the Phase Two course; here, fix the order and the four- and six-figure idea.

The compass and the bearing

Where the map holds the picture, the compass holds the direction. The central idea is the bearing, a direction measured in degrees from north, the whole way round the circle from 0 to 360, which you use to hold a line of travel without drifting. The two uses are mirror images. You can set a bearing from the map, measuring the angle from north between where you are and where you want to go, then follow it on the ground, picking a feature ahead on that line and walking to it rather than watching the needle every step. Or you can take a bearing to a feature you can see and compare it with the map. Small errors grow with distance: a course a few degrees off can place you hundreds of metres adrift over several kilometres, enough to miss a rendezvous or walk into the wrong valley.

        N (0 / 360)
          |
   W -----+----- E (090)        A bearing is read clockwise from north.
  (270)   |                      Set it from the map; follow it on the ground,
          |                      walking feature to feature along the line.
        S (180)                  A few degrees off grows to a big miss far away.

One honest complication must be named, because it is the commonest beginner's trap, but it is a principle to understand now, not a sum to master yet. The map's grid points to grid north; the compass needle points to magnetic north, the direction the Earth's magnetism actually pulls it; and the two are not quite the same. The small angle between them is the magnetic variation, so a bearing measured on the map must be adjusted before it is followed on the compass, and the reverse going the other way. The variation is not a fixed local figure to memorise: it differs from place to place and drifts slowly year by year, so a navigator always applies the figure given for the day from the map or the brief rather than a number carried in the head. You will learn to make the adjustment exactly, and to read well clear of metal, weapons, and electronics, in the Phase Two course; for now, understand only that the compass obeys magnetism, not your intentions.

Reading the ground

The brown lines on a map, the contours, are how the flat sheet shows the shape of the ground. Each line joins points of equal height, so where the lines are close together the ground is steep, and where they are far apart the ground is gentle. With practice you read the shape directly: a spur is a small ridge running out from high ground, its contours bending outward away from it; a re-entrant is a small valley cutting into high ground, its contours bending inward, often with a watercourse along its base.

The real skill is matching the map to the ground. A good navigator keeps the map oriented so its features line up with the country in front of them, then ties what they see to what is drawn, using the obvious things first: a stream junction, a bend in a track, a building, the steep face of a spur, the line of a wood. When the map says a re-entrant with a stream should be on your left and there it is, you have confirmed where you stand; when ground and map will not agree, that disagreement is a warning to heed, not to argue away. Reading the shape in advance also warns whether you are about to step onto an exposed ridge or into a hidden hollow, and which routes are too steep under load.

Map and compass first, the device an aid

Some imagine that a receiver in the pocket has made the map and compass obsolete. It has not. Batteries die, signals drop, screens break, and the cold flattens a battery without warning. A receiver can also fail quietly, reporting a confident position long after it has lost most of its satellites, or be set to the wrong reference and offset every position it gives. The standard in the RKA is therefore firm: navigate by map and compass, and use a satellite receiver only to confirm at checkpoints, never as the foundation. If the device disagrees with the map and compass, do not simply trust it; cross-check the bearing, the distance travelled, and the ground you can see. A soldier who can navigate by map and compass can always check, correct, or replace the device, and is never wholly lost.

If you become unsure of where you are

It happens to every navigator, and the measure of a soldier is not that it never happens but what they do when it does. The instinct is to press on faster, hoping the ground will make sense, which only carries you further from where you went wrong. The right response is a short drill.

Stop. The moment you doubt your position, stop moving, because every further step usually makes the problem worse. Stay calm. Being temporarily unsure is not an emergency; you have a map, a compass, and a brain, and that is enough. Work back to your last known point. Think when you were last certain of where you were, and reason from there: what bearing did you walk, for how long, so how far, and across what ground? Compare that against the map and the country around you until the picture fits again. Do not wander. Aimless casting about destroys the very information you need; if you cannot resolve it, returning carefully along your route to that last sure point beats guessing forward. And in a section you tell someone at once, because a doubt shared early is solved early, while one hidden out of pride becomes a search for you instead of with you. The fuller drills for relocating are taught and certified on the ground in the Phase Two course.

A first word on fieldcraft

Finding your way is one half of working in the field; the other is fieldcraft, the disciplined craft of operating in the open. Two ideas introduce it. The first is understanding why things are seen: the eye is drawn to a handful of cues, often remembered as shape, shine, shadow, silhouette, spacing, and movement, together with sound and contrast. A hard human outline, a glint off metal or wet kit, a figure on a skyline, careless noise, each can give a soldier away, and good fieldcraft is the habit of reducing them. The second is moving using the ground: choosing routes the ground itself conceals, moving deliberately rather than rushing, and pausing often to observe, because a soldier who moves constantly sees less than one who moves with control. Both are introduced here only; they are set out in full in Module 04 and taught and certified on the ground in the Phase Two Navigation and Fieldcraft course.

In Practice: The Hillside Search

A damp morning on the high ground above a coastal valley, where the RKA has been asked to help find a missing walker. The section gathers around a map. The instructor reads the scale first, confirms a 1:25,000 sheet, then turns to the grid, and the recruits work out a reference for the point where the walker was last seen: eastings first, northings second, along the corridor then up the stairs, said aloud to a partner before sending, 274 612, a point to a hundred metres. From the map a bearing is measured to the next feature, a small re-entrant they can pick out by its inward-bending contours and the stream along its base, and a recruit notes it will need the day's variation applied before it is walked. The section orients the map to the ground and ties the drawing to the country in front, the wood on the left, the spur ahead, the stream in the hollow, until the two plainly agree. A satellite receiver agrees too, but the section moves on the compass bearing, because the device is only confirming what the map and compass already show. Partway across, one recruit loses the thread of the ground; instead of pushing on, they stop, say so, and the section works back to its last sure feature and picks the route up again. As they move they keep off the skyline and use the folds of the ground, fieldcraft and navigation working together. Reaching the ground and reading it correctly is the whole of the task, exactly the plain skill the RKA is most often called upon to use.

Check Your Understanding

Why must every soldier, not only a specialist, be able to find their way, and why is admitting uncertainty early described as competence rather than weakness? What is a map, and what is the first thing you should read on it, and why?
Which figures of a grid reference do you read first, how is the rule remembered, and what is the difference between a four-figure and a six-figure reference? Explain in outline what a bearing is, and why magnetic variation is applied with the figure of the day rather than a memorised number.
How do contours show whether ground is steep or gentle, and what does it mean to match the map to the ground using obvious features? Why does the RKA treat a satellite receiver only as an aid, and what steps do you take when you become unsure of where you are?

Reflection (write a short paragraph): Imagine you are part of a search for someone lost on the high ground in poor weather, and the people depending on you may never know your name. Think about why the map and compass, old and unglamorous as they are, remain the skills that will not fail you when a screen goes dark. What kind of soldier do you intend to be when the navigation is hard and the temptation is to push on and hope rather than to stop, admit the doubt, work back to your last known point, and fix your position before going on?

Summary

A soldier must be able to find their way because search and rescue and all field work depend on reaching the ground and moving across it; the most dangerous error is the quiet one that goes unchallenged, so you stop and fix your position when unsure.
A map is a scaled drawing of the ground seen from above; read the scale first (1:50,000 is one centimetre to 500 metres, 1:25,000 to 250 metres), and read the ground through its colours: blue water, green vegetation, brown relief.
The grid names any point exactly: read eastings before northings, along the corridor then up the stairs; a four-figure reference names a one-kilometre square and a six-figure reference a point to a hundred metres, repeated aloud before it is sent.
The compass holds direction through the bearing, a measured direction in degrees from north that you set from the map and follow on the ground; small errors grow with distance, and magnetic variation, the difference between grid and magnetic north, is applied with the day's figure.
Contours show the shape and steepness of the ground, a spur bending outward and a re-entrant inward; read the ground by matching the map to it with obvious features. The map and compass come first and a satellite receiver is only an aid that can fail. When unsure, stop, stay calm, work back to your last known point, and do not wander.
Basic fieldcraft, understanding why things are seen and moving using the ground, is introduced here, with the full treatment in Basic Training Manual Modules 04 and 13 and the Phase Two Navigation and Fieldcraft course, certified on the ground.

Finding Your Way