How to Use a Map and Compass: Complete Navigation Guide

Map reading basics: scale, symbols and orientation

A topographic map is a scaled, top-down model of the landscape. Before you touch a compass, learn to read it fluently – most navigation is done with the map alone, by matching what you see on paper to what you see around you.

Map scale

The scale tells you how much the real world has been shrunk. On a 1:25,000 map, 1 cm on the map equals 25,000 cm – that is, 250 m – on the ground. On a 1:50,000 map, 1 cm is 500 m. For walking, bushcraft and off-trail navigation, 1:25,000 is ideal: it shows individual paths, field boundaries, small streams and forest types. 1:50,000 covers more ground and suits long routes and cycling.

Symbols and the legend

Every map series has its own legend, printed on the edge or cover. Learn the symbols for paths and tracks (solid, dashed, dotted lines), forest types (deciduous, coniferous, mixed), water (streams, ponds, marsh), buildings, power lines, boundaries and viewpoints. Power lines and forest edges are excellent navigational features because they are long, straight and hard to miss.

Orienting the map

An oriented map is turned so that north on the map points to north in reality; then everything on the map lies in the same direction as in the landscape. You can orient a map in two ways: by terrain (turn it until a straight path or stream on the map lines up with the real one) or by compass (lay the compass on the map, then turn the map and compass together until the needle points to the top of the map, parallel to the north grid lines). Keep the map oriented as you walk – "thumbing" your position with your thumb on the map makes it easy to follow your progress.

What it should look like: a path that leaves to your left in reality also leaves to the left on the map, and a hill ahead of you lies ahead of your thumb. If not, the map is not oriented – or you are not where you think. The few degrees of declination in Germany do not matter for this.

Orienting by terrain works without a compass: stand on a straight feature you can identify – a path, a forest edge, a power line – and turn the map until the same feature on the map runs parallel to it. Then confirm with a second feature, such as a stream to your right, because a straight path fits the map in two directions 180° apart.

Contour lines: reading the shape of the land

Contour lines join points of equal height. They are what turns a flat piece of paper into a three-dimensional landscape in your head, and they are the most reliable features on the map: paths change and forests are felled, but hills and valleys stay put.

• Contour interval: the height difference between two lines – often 5, 10 or 20 m depending on map series and terrain; check the legend. Every fifth line (index contour) is usually thicker and labelled with its height.
• Close together = steep, far apart = gentle. Lines merging into one indicate a cliff.
• Valleys and spurs: contour lines form a V or U shape. In a valley, the V points uphill (towards higher numbers); on a spur or ridge, it points downhill. Streams always run along valley V's.
• Hilltops appear as small closed rings; a saddle (col) is the low point between two hilltops, like an hourglass.
• Which way is up? Look at the height labels – the tops of the numbers usually face uphill – or at streams, which always flow downhill.

Practice by predicting the terrain before you reach it: "In 300 m the path should cross a stream at the bottom of a steep little valley, then climb gently." When reality matches, you know where you are. When it doesn't, stop and check.

Grid lines and grid references

Most topographic maps are overlaid with a grid of numbered squares. In Germany and much of Europe this is the UTM grid; in the UK it is the Ordnance Survey National Grid; US topo maps show UTM ticks as well. On a 1:25,000 map, each square is usually 1 km × 1 km (4 cm on the map), which makes estimating distance quick.

A grid reference describes a point by its easting (the vertical line, numbers increasing to the right) and its northing (the horizontal line, numbers increasing upwards). Always read eastings first – remember "along the corridor, then up the stairs". A four-figure reference identifies a 1 km square; a six-figure reference narrows it to 100 m by dividing the square into tenths. For emergency calls, rescuers can work with grid references or GPS coordinates; practise reading both.

The grid lines matter for compass work too: their north–south lines are what you align the compass housing with when taking a bearing. Grid north differs slightly from true north and from magnetic north – see declination below.

Parts of a baseplate compass

For map navigation you need a baseplate compass (also called an orienteering or protractor compass): a transparent plate with a rotating, liquid-filled housing. A sighting compass with a mirror adds precision for taking bearings on distant landmarks. Button compasses and compasses on watches are fine for a rough direction but not for map work.

Two things on the compass move and one does not. The plate moves with your hands and your body; the bezel moves only when you turn it; the needle never follows either – it always swings back to magnetic north. Almost every compass error comes from mixing up these three: turning the bezel when you should turn your body, or reading the needle when you should be reading the bezel.

Compasses are balanced for a magnetic zone. A compass balanced for the northern hemisphere may drag and stick in the southern hemisphere; "global" needles work everywhere. Keep your compass away from phones, knives, car bodies and power lines while taking a bearing – even a steel belt buckle can deflect the needle several degrees.

How to take a bearing from the map

A bearing is a direction expressed as an angle, measured clockwise from north: 0° (or 360°) is north, 90° east, 180° south, 270° west. Taking a bearing from the map is the core compass skill, and it takes three steps on the map (1–3 below) – the map does not even need to be oriented. Step 4 corrects for declination, steps 5 and 6 take the bearing into the terrain.

Following a bearing on the ground

Take the compass off the map and hold it flat in front of your chest, travel arrow pointing straight ahead. Turn your whole body – not just the compass – until the red end of the needle sits exactly inside the orienting arrow ("put red in the shed"). The travel arrow now points to your target. Look along it, pick a distinctive landmark on that line – a tree, a rock, a gap in the bushes – put the compass away and walk to the landmark. Then repeat. This "leapfrogging" is much more accurate than walking with your eyes on the needle.

In dense forest or fog, landmarks may be only 20–30 m apart. With a partner you can send them ahead and direct them left or right onto the line. At night, a companion with a headlamp makes a perfect moving landmark.

Taking a bearing from the terrain

To find the bearing to a visible object (for example, to identify a hilltop), point the travel arrow at it, turn the housing until the orienting arrow lines up with the needle, and read the bearing. Converting this magnetic bearing to the map means reversing the declination correction.

Troubleshooting compass errors by symptom

Compass mistakes rarely announce themselves – the terrain does. Compare what you expected from the map with what you find, and work backwards from the symptom.

Magnetic declination: why your compass doesn't point to true north

The compass needle points to magnetic north, which is not the same as true north (the geographic pole) or grid north (the direction of the map's grid lines). The angle between magnetic north and true north is the magnetic declination (called variation at sea). It depends on where you are and changes slowly over the years as the magnetic pole wanders.

Most topographic maps print the declination, or the grid–magnetic angle, in the margin together with the year and annual change. Online calculators from national geological or geomagnetic services give current values for any location. As a rough guide for 2026: in Germany declination is small and easterly – around 2–5° east, lower in the west and higher in the east; in the UK it is close to zero; in North America it ranges from strongly west in the north-east to strongly east in the north-west. Always check a current source.

Correcting for declination

A simple rule for converting a map (grid) bearing to a magnetic bearing: "East is least, west is best" – with easterly declination, subtract it; with westerly declination, add it. Going from compass to map, do the opposite. Some compasses have an adjustable declination scale so you set it once and forget it.

In Germany, with only a few degrees of declination, many hikers ignore it for short legs – but over 1 km even 4° puts you about 70 m to the side, enough to miss a small trekking site or a spring in the forest. In parts of North America, where declination can exceed 15°, ignoring it is simply not an option.

Worked example: which way to turn the bezel

You have taken a grid bearing of 50° from the map, and the map margin gives a declination of 3° east. East is least: 50° − 3° = 47°, so you turn the bezel until 47 sits at the index line. With 3° west you would add it and set 53°. Going the other way – from a bearing you measured on the ground to the map – you reverse the sign: a magnetic 47° becomes 50° on the map with easterly declination.

If you get the direction wrong, the error does not cancel out, it doubles: instead of 3° you are 6° off, roughly 105 m per kilometre. Quick check: with easterly declination the magnetic bearing is the smaller number. With an adjustable declination scale you set the value once and the bezel then shows map bearings directly – check the setting before each trip.

Finding your position: triangulation and back bearings

If you can see identifiable landmarks but don't know exactly where you are, you can fix your position by triangulation (technically a resection). It works best in open terrain with visible hilltops, towers, church spires or distinctive buildings.

1. Identify two or, better, three landmarks that you can see and find on the map, ideally 60–90° apart.
2. Take a bearing to the first landmark from where you stand.
3. Convert it to a map bearing (reverse the declination correction).
4. Calculate the back bearing: add 180° if the bearing is less than 180°, subtract 180° if it is more.
5. Place the compass on the map with the edge touching the landmark and set to the back bearing (orienting lines parallel to grid lines), and draw a line from the landmark along the edge.
6. Repeat with the second and third landmark. Where the lines cross is your position; three lines usually form a small triangle – you are inside it.

A simpler version works with one bearing and a linear feature: if you know you are on a particular path, stream or ridge, one bearing to a landmark is enough – your position is where the back-bearing line crosses that feature.

Aiming off, handrails and attack points

Professional navigators rarely walk long, straight compass legs. They use the landscape to make navigation easier and errors harmless. These four techniques will make you far more reliable than precise compass work alone.

Handrails

A handrail is a long feature that leads roughly in your direction: a path, stream, forest edge, wall, power line or valley. Following it needs almost no concentration. Plan routes as a chain of handrails, with short compass legs in between.

Catching features

A catching feature lies across your route just beyond your target – a road, river or lake shore. If you reach it, you know you have gone too far. It protects you from walking past your destination.

Aiming off

Suppose you want to reach a bridge on a stream. If you take a bearing straight at it and arrive at the stream, you won't know whether the bridge is left or right. Instead, aim off deliberately to one side – say 5–10° to the left. When you hit the stream, you know the bridge is to your right. Each degree of offset moves you about 17 m sideways per kilometre, so 5° gives roughly 90 m of deliberate error per km.

Attack points

For a small target – a spring, a trekking site, a boulder – navigate first to a nearby, easy-to-find feature (a path junction, a stream bend, a hilltop), the attack point. From there, take a short, precise bearing and count paces to the target. The shorter the final leg, the smaller the error.

Measuring distance: pace counting and timing

Direction is only half of navigation – you also need to know how far you have gone. In the forest, with no views, distance estimation is often what separates success from getting lost.

Pace counting

A pace in navigation means a double step: count every time your left (or right) foot touches the ground. Most adults take about 60–70 paces per 100 m on flat ground. Calibrate yours by walking a measured 100 m three times and averaging. Your pace shortens uphill, in thick undergrowth, in snow, at night and with a heavy pack – the pace count calculator adjusts for slope, ground and darkness and converts distances to paces and back.

To keep track over longer distances, use "ranger beads" (pace beads): a cord with two sets of sliding beads. Slide one lower bead every 100 m; after ten, slide one upper bead for a kilometre and reset the lower ones. A pebble moved from one pocket to another works too.

Timing with Naismith's rule

Timing is the second distance check. Naismith's rule gives a baseline: 1 hour per 5 km plus 1 hour per 600 m of ascent. Langmuir's corrections adjust for descents: add about 10 minutes per 300 m of steep descent, subtract about 10 minutes per 300 m of gentle descent. Then factor in terrain (off-trail can take 1.5 times as long or more), the weight of your backpack and fitness, and add breaks. The hiking time calculator does all of this and gives you an arrival time.

In practice: if you walk at about 4 km/h on a forest track, 250 m takes roughly 4 minutes. If you have been walking twice that long without reaching the expected feature, stop and check.

What to do when you are lost

Everyone who navigates gets "temporarily disoriented" sometimes. The danger is not the mistake, but carrying on and making it worse. Use the STOP method: Stop, Think, Observe, Plan.

If night is falling, it is often wiser to stop and set up a simple camp than to stumble on in the dark – see camp setup and choosing a camp site. The sunset calculator tells you how much light you have left. In an emergency, call the European emergency number 112 (911 in North America) and give your grid reference or GPS coordinates.

Map, compass and GPS: practice plan and kit

A phone with offline maps and GPS is an excellent tool – but batteries die in the cold, screens fail in the rain, and signal can vanish in deep valleys. Treat map and compass as your primary system and GPS as a quick position check, or the other way round, but always carry both and know how to use them. Keep the phone warm, in flight mode, with a power bank.

A simple practice plan

1. Week 1: On a familiar walk, orient the map at every junction and thumb your position.
2. Week 2: Calibrate your pace count; walk measured legs on a forest track.
3. Week 3: Take bearings from the map to path junctions and follow them across open woodland.
4. Week 4: Plan a route with handrails, aiming off and attack points to a small target.
5. Then: Try fog, dusk and short night legs with a partner. Orienteering clubs offer permanent courses that are perfect for practice.

Short compass drills

• Guess first: before you put the compass on the map, estimate the bearing by eye and write it down. Then take it properly. Big differences show you where a 180° or quadrant error would have crept in.
• Compass square: in an open field, put down a marker, then walk four legs on 0°, 90°, 180° and 270° with the same number of paces on each leg. If your technique is clean you finish close to the marker; a consistent miss shows your personal drift.
• Out and back: walk 100 m on a bearing, add or subtract 180° for the back bearing and walk back. You should arrive at your start – a good way to practise the back bearing you need for triangulation.

Add these to your bushcraft kit list or build a complete list with the Kit Builder. For more field skills, explore all bushcraft skills, from animal tracking – which trains the same observation skills – to essential knots. Planning an overnight trip in Germany? Check the rules in wild camping in Germany and plan your water stops with finding water.