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Tough, Light, Waterproof maps for Walking, Running & Cycling

Blog archive

February 2019

February 2019

Winter clothing tips
by Nigel Williams

Let’s start with a good pair of stiff soled walking boots. If you can twist the sole they are likely to be too soft for winter. A small amount of toe flex is to be expected in a walking boot but the key issue is having crampons that are compatible with the boot sole. Boots are graded for flex from B0 lightweight trail shoes unsuitable for crampons through to B3 for a rigid winter climbing boot. Crampons are graded from C1 to C3 according to their flexibility and attachment method. The crampons should match the boot. Take your boots to the retailer when you want to buy a pair.

A good quality rucsac around 35 - 40 litres with a traditional lid pocket works well. Line it with a separate dry bag or water proof liner. (Rucsac covers in winter tend to get blown away or collect blown snow).

Gaiters are good in winter to stop snow going into your boots. I wear mine under waterproof trousers as any snow has to go up inside the trouser before it can travel down into the boots and melt. Wearing them outside trousers allows rain and snow to travel straight down into your boots.

Take your walking boots with you when buying a pair of walking trousers. Nothing worse than finding you can’t get your new trousers on over your boots in pouring rain or snow and have to remove them. Longer side zipped trousers are more expensive but they are quick to put on without needing bare hands to fiddle with boot laces.

“Cotton kills” is an old adage, a good thermal base layer is a must. A buff is also a simple light and versatile piece of clothing that around the neck is almost worth another thin layer.

As an extra warm layer many mountaineers carry a synthetic duvet type jacket referred to as a belay jacket which will keep you warm even if wet. Down is for dry cold weather which is not the norm in Scotland.

A good pair of outer mittens or gloves that are waterproof is also an essential piece of kit for me. Gloves are very difficult to make waterproof with so many seams. Mittens are easier and warmer but tricky if manipulating a compass.

No piece of winter kit works in isolation. It is the sum of the whole set of clothing and equipment and one weak link can often expose others on a bad day.

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January 2019

January 2019

Winter Munroing kit
by Nigel Williams

I’m often asked, what is the most important piece of kit to carry for a winter hill day? My answer is ski goggles! Strong wind with snow and ice particles blasting your face hinders navigation skills from route finding and avoiding hazards to basic map and compass work. They’re awkward to carry, but can be a life saver. Tinted ski goggles are good for seeing the terrain, clear lenses make the map easier to read. It’s really worth paying more for anti fogging goggles. Condensation often freezes on the inside and is almost impossible to sort until back in a warm environment. Also check compatibility with wearing reading glasses if required.

Having the kit, ice axe & crampons etc. and the skills to use them is often talked about. Making the decision to use or change equipment before things get fraught however seems to be all too often overlooked. Spare warm layers, hat, gloves and/ or mittens in waterproof bags and accessible doesn’t require knowledge of use, but once hands are cold and wet it is difficult to carry out the simplest of tasks. It also impacts one’s ability to make sound decisions and use the skills.

Walking poles (ideally a pair) with a large snow basket are invaluable on soft snow in easy terrain, BUT the timely decision to put them away and replace with an ice axe is critical.

GPS as a quick location confirmation tool rather than a navigation tool. However touch screens rarely work in poor conditions or wearing gloves.

Head torch for an early start, although errors in planning and decision making often lead to it being used at the end of the day.

“Group shelter” a useful item not just for emergencies, it is a light wind proof (not waterproof) nylon bag that can be pulled over the top of a group. With everyone huddled inside it soon warms up and enables people to sort equipment, take on food and check the navigation.

A 4-6 person size is probably most useful. A 4 person one works for 2 people but not the other way around. If you can’t get the whole party inside even split between several shelters there may be a reluctance to use it and leave someone stood outside in the cold. However not having one leaves no option of shelter for anyone.

This piece may appear to be about safety kit for a winter mountain day, but it is also about planning and timely decision making.

Example of Winter Munroing Kit:
1. Rucksack
2. Warm and waterproof layers (plus spares)
3. Head torch
4. First Aid Kit
5. Gloves or Mittens (plus spare)
6. Hat (plus spare)
7. Ski goggles
8. GPS device
9. Map & Compass!
10. Watch
11. Emergency Shelter
12. Ice Axe
13. Walking Poles
14. Crampons
15. Dry bags (for keeping spare kit dry)
16. Warm drink/food

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December 2018

December 2018

Be Avalanche Aware
by Nigel Williams

The Scottish Avalanche Forecast started at the weekend as storm Deirdre arrived, and now it looks like we are going into a period of warmer weather. But that gives us time to think about the realities of travelling in the hills safely at this time of year. There is sometimes a view that it is climbers that get avalanched. Look more closely at the statistics and it becomes evident that “climbers” tend to get avalanched on the approach to their climbs or on their descent, often on ground around 30 - 45 degrees (the most common angle for avalanches to occur). Whilst those sorts of angles are steep for many walkers they often appear attractive with the ground being smooth and presenting the option of a shorter route in ascent or descent.

Avalanche education over the years has changed. In the 1970s and 1980s it was all about the (existing at that time) science of snow. In the 1990s and early 2000s this changed more to a testing of the snow pack approach. In the past 15 years it has moved to avoiding the avalanche terrain through proper planning and thought processes before and during our journey and an understanding of heuristic biases. It is amazing how many people who have survived an avalanche will say that they thought the slope might be suspect yet still carried on. So why do we do this? Heuristic bias; a short cut decision making process our brain makes which overrides our critical risk management thinking. For example, you see fresh footprints up a slope that in your planning you had identified as a potential avalanche risk. But now on the ground, knowing it would shorten your route, you decide it must be safe.

The problem we all face with the subject is that 99% of the time the feedback we receive is that we made the right judgement when we have fallen into these biases - unless we actually get avalanched! Heuristic biases are fascinating and there are at least half a dozen more identified in relation to avalanche incidents and even experts are prone to them. In reality today we employ a range of all of this knowledge and practical skills which complement each other.

Gone are the days of stopping at a phone box and trying to get a recorded weather forecast when you are already on your way to the hill. Planning has changed hugely in the last couple of decades with improved weather forecasting and the existence of the Scottish Avalanche Information Service (SAIS) which enable us to start the process several days ahead of our trip. It is worth remembering though that these are forecasts and on the rare occasions that the weather forecast is inaccurate then it is likely that the avalanche forecast reflect this. The Scottish Government, largely through sportscotland, is actually investing a lot of money into trying to keep us safe in the mountains in winter.

Check out the SAIS website and spend time learning about the subject. Planning and avoidance (which may mean higher than summer navigation skills) is the key. There is also a Be Avalanche Aware mobile app.

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November 2 2018

November 2 2018

by Nigel Williams

An increasing number of devices carried in the hills have an altimeter mode. Maps are designed to replicate a 3D reality on a 2D surface. Contours probably account for a 3rd of the information we can get from a map, double that in winter, which is why they can be such a useful navigation tool. A compass similarly provides 2D information and an altimeter the 3rd dimension offering that extra 30% of information. Digital mapping however is reducing their use as a stand alone device.

There are two types of altimeter. The traditional barometric altimeter which measures air pressure, and the GPS satellite based system. Some GPS devices have both systems. GPS readings can be inaccurate close under cliffs or on steep ground. Barometric altimeters can be inaccurate on ridges and cols where the wind creates a vortex or is funneled, creating pockets of low and high pressure. Both rely on battery power for a digital reading, although traditional barometric altimeters are analogue.

The higher we go the less the air pressure. This is how the barometric altimeter works. However, the device needs to be calibrated at regular intervals.

A synoptic weather chart uses isobar lines similar to contours. These are lines of equal pressure. A typical Low pressure series of concentric circles crossing the Atlantic and passing over the UK travels at about 25mph regardless of the wind speed. Those lines would pass overhead if we stayed in the same place on the ground. As the centre of the Low comes towards us the pressure decreases giving a higher altitude reading. As the centre of the Low moves away the pressure rises giving a lower reading. 3 Isobars passing over will change an altitude reading by about 100m. Therefore a manual adjustment is required every 30 or so minutes at known heights on the map. The car park, path junction, hill top etc. It also means that they are not super accurate but will be within 10 metres or so.

On multi day journeys barometric altimeters provide a weather forecasting tool. When waking in the morning, if you find that the altimeter suggests you have slid downhill 100m you know the weather is improving - high pressure is developing. If you have been elevated then low pressure, probably poor weather is on the way.

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November 1 2018

November 1 2018

It's Getting Dark!
by Nigel Williams

As the nights close in rescue teams are being called out to search for people in difficulty. Often this is a confidence as much as a navigation issue.

Preparation is key before it gets dark. Walking poles are helpful across difficult ground at night, but they can be a distraction from using the tools of navigation which need full concentration. With reduced vision other senses can kick in. Contours, feeling the ground and listening for running water can be key to navigation.

Prior to darkness, stop, have a snack break and make sure navigation tools are easily accessible. Moving at night can be slow and the temperature may drop. Keep hats, gloves etc. handy and put the head torch on your head (switched off). If need be, call friends to let them know you are running late. There is often a better signal on the tops. Set the first or a key bearing on your compass. If using the phone gps function to back up map and compass, turn to airplane mode to extend battery life and try to use it just for checking your position.

Study the route in detail and plan to follow linear features such as paths, streams, fences and ridges all the way, even on a longer route. Whilst following linear features don’t ignore the third dimension. Note the angle you expect to cross the contour lines and changes in contour spacing identifying steepening and shallowing of the slope. Recognise other features along the route such as stream crossings. These all provide non visual tick off features. Keep a rough check on the direction of travel with the compass needle. If a star on the horizon aligns with the route it can be used for 20 -30 minutes but they all move except the North Star.

Try to keep the torch off for as long as possible. Night vision will develop as it gets dark. Head torch beams tend to focus our vision. Turning off all lights, wait a few minutes for night vision to develop then squat down to silhouette the landscape around for an improved view of the terrain.

Lastly, to help keep an element of night vision, close one eye when there is a group discussion around the map and headtorches are dazzling.

Night navigation is not difficult but does need concentration and a bit of confidence.

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October 2018

October 2018

The psychology of getting lost
by Nigel Williams

Being lost, "temporarily geographically embarrassed" or "cartographically challenged" happens to all of us at some time in the outdoors. It is only a temporary state but can be stressful, frustrating and even embarrassing.

Most people have vivid memories of being lost. They can recall the situation in remarkable detail because of the fear and stress of the situation. But why should it create these emotions? It may go back to the Stone Age when there were real threats out in the woods. However, common modern day experiences may also have a part to play.

Ask any group to recall the very first time they had a frightening experience of feeling lost. In a supermarket as a toddler and separated from a parent is a common response.

So first we have a state of high anxiety and a feeling of isolation and the unknown. There are a number of common responses to the situation at that age. Standing crying is the most common, but “fright and flight” can kick in sending adrenaline to the legs resulting in a frantic running around the aisles (more likely to be the parent).

When found we may witness facial cues and expressions of relief, even tears, the like of which we have not seen on the parent before, making us subconsciously aware that this has been a big event. (Decades on people often remember detail such as the dress their mother was wearing.) Lastly we often get a serious telling off just to compound the awfulness of the whole episode. Then for the next decade of our lives we are exposed to fairy tales about being lost in the woods.

It seems hardly surprising that all this sets off high levels of anxiety and emotion which interferes with rational thought and actions. It is embedded in us at an early age. Unfortunately in the outdoors it may be backed up with limited or unpracticed navigation skills.

In reality we are usually misplaced rather than lost. We generally know we are somewhere on the map and not in genuine danger. Getting lost might result in being late or a long walk back to the car but the only harm done is usually to our ego.

From personal experience though, getting lost seems to help practice the skills and diminish the anxiety, unless you are leading a group!

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