Your phone is a tool, not a plan

Most of us carry a phone with a mapping app, and for lowland walks it is brilliant. In the British hills it is a fair-weather friend. Cold drains batteries. A cracked screen in a rocky gully is useless. A wet touchscreen can refuse to respond. Signal vanishes in deep valleys and on remote moors. The phone is a useful extra, not a navigation system to bet your day on. A paper map and compass do not need charging, do not mind rain, and work when the mist is down and the path has disappeared. The catch is that they only work if you have practised with them.

The simple kit that never runs flat

Carry a map of the area you are walking, not the whole national park. A 1:25,000 sheet shows walls, streams, crags and paths in useful detail; 1:50,000 is lighter and fine for open hills if you are confident. Keep it in a clear map case, folded so the section you need is visible. A baseplate compass with a magnifying lens and romer scale is enough. Then add:

• A head torch with spare batteries.
• A whistle and an emergency shelter.
• A warm layer and a small first-aid kit.

These are not luxuries; they are the difference between an inconvenience and an incident.

Before you leave, check the map margin for magnetic variation. In the UK it is small, but not always zero. Know whether to add or subtract it. Note the scale: on 1:25,000, 4 cm is 1 km; on 1:50,000, 2 cm is 1 km. That matters when estimating distance.

Reading the land, not just the line

A path on a map is a line. The ground is a shape. Learn to read contours and you always have a backup. Close contours mean steep ground; widely spaced contours mean gentle slopes. A V-shaped contour pointing uphill is a valley or re-entrant; pointing downhill, it is a spur or ridge. Look for handrails: a wall, fence, stream, ridge line or forest edge that runs in the direction you want to go. If you can follow a handrail, you have a running check on your position.

Use attack points. Instead of aiming for a small cairn on a featureless plateau, aim for a larger, obvious feature nearby, then navigate the last short leg carefully. Aiming off is another simple trick. If you are heading for a bridge over a stream, deliberately aim a little upstream or downstream. When you hit the stream, you know which way to turn. Far better than arriving at a stream and guessing.

Compass skills you can practise anywhere

Set the map by placing the compass on it, aligning the orienting lines with the grid lines, then rotating map and compass together until the needle sits in the orienting arrow. Thumbing is the habit of keeping your thumb on your current position as you walk, moving it along the map. It sounds small; it prevents the slow drift into uncertainty.

To take a bearing, point the direction-of-travel arrow at your target, rotate the bezel until the orienting lines align with the map's grid lines, then read the number at the index line. Add or subtract variation, then turn your body until the needle sits in the orienting arrow. Walk on that bearing, checking it every few minutes. For distance, use timing and pacing. Many walkers use roughly 4 km/h on level ground, plus one minute for every 10 metres of ascent, then add time for bog, scree and rests. Measure your own pace over 100 metres on a track, then count double paces on the hill. It will vary with terrain and tiredness, but it gives a useful rough figure.

Navigation habits for misty days

When the cloud comes down, slow down. Stop, check the map, check the compass, and look at the ground. Ask what you expected to see and what you actually see. If they do not match, do not walk on hoping. Use a deliberate check: take a bearing, estimate the distance, and identify one feature you can confirm. Tick off features as you pass them. If you are with a group, make sure everyone knows the plan and the escape route.

Keep the map and compass accessible, not buried at the bottom of your pack. Wear the compass on a lanyard. Put the map in a case you can open with cold hands. Carry a small notebook and pencil for timings and bearings. Tell someone where you are going: a route card with your intended route, start time and expected finish is simple and effective. If things go wrong, call 999 and ask for the police, then mountain rescue.

Practise before you need it

The best time to learn navigation is on a sunny afternoon on a familiar hill. Leave the phone in your pack. Navigate a short route using only map and compass. Take bearings. Count paces. Identify contours. Follow a handrail. Deliberately walk a leg without a path. Make mistakes in good conditions, when the consequences are small. Then repeat it in wind and rain, with gloves on, when your fingers are clumsy. That is when the skills become real.

A paper map is not nostalgia. It is a dependable backup, and it rewards attention. Your phone may die, but the map will not. Learn to use it well, and you can walk in the British hills with confidence, whatever the weather and whatever the battery indicator says.