Navigation

Foraging Safely for Blackberries and Sloes in Autumn

Simple Navigation Tricks for Walking in Low Cloud

Why low cloud demands a different approach

When cloud drops to the ground, your world shrinks to a few dozen metres. The distant ridge you were using as a handrail disappears. The path becomes a faint smear. It's easy to convince yourself you're still on track when you're not. The trick isn't to become a navigation wizard overnight. It's to slow down and use three simple tools: pacing, timing and handrails. Break your route into short legs, and confirm each one before you move on. That way, a mistake is small and fixable, not a long walk in the wrong direction.

Break the route into short legs

Before you leave the car park, look at your map and divide the walk into legs. A leg is simply the distance between two clear features: a stream junction, a path bend, a wall corner, a cairn. In good visibility you might cover a whole ridge in one go. In low cloud, aim for legs of 500 metres or less. Sometimes 200 metres is plenty.

Write them down if it helps: "Leg 1: from gate to the fork, bearing 040, 600 metres. Leg 2: from fork to the old fence line, bearing 075, 400 metres." At the end of each leg, stop. Check your map, your compass and your surroundings. Only when you're sure you've found the feature do you start the next leg. This single habit prevents most low-cloud navigational errors.

Pacing: count your steps to measure distance

Pacing is the art of knowing how far you've walked by counting steps. On flat ground, most adults take between 60 and 70 double-steps per 100 metres. A double-step is every time your left foot lands (or your right, as long as you're consistent). On rough ground, uphill, or through heather, that number rises.

Next time you're out, measure 100 metres on a flat path using a map or a measuring tape. Walk it naturally and count your double-steps. Do it three times and take the average. That's your flat-ground pace count. Then practise on uphill terrain. A common rule of thumb is to add 10 to 15 double-steps for every 10 metres of ascent. So if your flat count is 65, a 50-metre climb over 100 metres might need 115 to 130 double-steps.

In low cloud, count in blocks of 100. Use a tally counter, move a stone from pocket to pocket, or just count out loud. When you reach your expected number, stop and look for your feature. If you've counted 600 double-steps and expected 600, but there's no stream junction, you've either overshot or undershot. Don't guess. Re-check your bearing and pace count, then walk a short distance back or forward.

Timing: your watch as a distance gauge

Timing works on the same principle. On flat ground, a fit walker covers roughly one kilometre in 12 to 15 minutes. Add one minute for every 10 metres of ascent. That's Naismith's rule, and it's still a reliable starting point. In low cloud, timing is a backup for pacing. If your pace count says you've gone 400 metres but your watch says 10 minutes, something's off.

Start your watch at the beginning of each leg. Note the time you expect to arrive. For a 600-metre leg with 20 metres of ascent, allow about 10 minutes. If you reach 12 minutes and haven't found your feature, stop. You've likely missed it. Use your compass to walk back on a reciprocal bearing for a short distance, then try again. Timing is also useful when you can't count paces – for example, when you're scrambling or fighting through deep heather.

Handrails: follow linear features

A handrail is any linear feature on the map that you can follow. A wall, a fence, a stream, a ridgeline, a path, even a line of pylons. In low cloud, handrails are gold. Instead of walking on a precise bearing across open ground, you aim for the handrail, then follow it to your next point. This reduces the need for constant compass work and gives you a physical line to touch.

For example, suppose you need to reach a bridge over a stream. Rather than walking straight to the bridge, you could walk on a bearing that hits the stream 200 metres upstream of the bridge. Then you turn and follow the stream downstream until you reach the bridge. That's called aiming off. It's a simple trick that stops you from walking past your target in poor visibility.

When you use a handrail, stay in contact with it. If it's a wall, walk alongside it. If it's a stream, follow its bank. Count your paces between features on the handrail – a bend, a tributary, a gate. Handrails also work in reverse: if you're lost, find a handrail and follow it to a known point.

Putting it all together

None of these tricks is complicated on its own. The skill is in combining them and building the habit of confirming each leg. Before you set off, pick your first leg. Note the bearing, the distance in paces, the expected time, and the handrail you'll use. Walk that leg. When you think you've arrived, stop. Check the map. Check the compass. Look for the feature.

Practise on a clear day first. Pick a short route and navigate it using only pacing, timing and handrails. Leave the GPS in your pack. You'll make mistakes, and that's fine – the point is to learn how your pace count changes on different ground, and how long a leg really takes. When low cloud does arrive, you'll have a set of simple, reliable tools that keep you on track.

« Previous postOtto von Bismarck Next post »http://www..com/