Lomond Mountain Rescue Team have issued an appeal to walkers with smartphones to think about using an app that helps people establish their location in the event of an emergency.
'Mountain Rescue Teams across the UK make use of the latest technology with the aim of pinpointing lost walkers' they say.
'While they have the ability to locate smart phones with bespoke SARLOC software, this technology does rely on the availability of a data signal which, as we all know, can be unreliable in the hills and mountains of Scotland.'
'Therefore, in a call to all hillwalkers and mountaineers, we have decided to ask you to help us! If you own a smart phone we would like to ask you to consider installing the free Ordnance Survey app OS LOCATE onto your Apple or Android phone. This simple app provides an accurate, easily readable UK Grid Reference that you can provide to the emergency operator, should you ever have to call on the services of Mountain Rescue.'
'At the very least, it could mean the difference between a brief spell on the hill or a cold, long wait as search teams methodically sweep mountain and glen for you.'