Why the army would use ordnance survey maps?
Aside from the obvious ever so slightly smart @rse answers (which, don’t get me wrong, are absolutely correct) the Army uses Ordnance Survey maps for one very, very important reason which goes beyond the ‘you do know what Ordnance means’ domain. They’re accurate. Highly accurate. I have used them to find my through trackless forests where I did not truly know where I was. But finding one stream and knowing the map showed downhill to be the way to a road meant I knew I could follow that stream and there would be a road about a three miles away. This is something you can work out even without a compass; with a compass you can pinpoint your position with fairly astonishing accuracy. If you are injured but have communications and a map and compass you can take bearings and give the rescue services the best possible chance of finding you. With a map and compass you can follow a bearing in the pitch dark and by knowing how far away your destination is and how steep the land is you can work o
Ordnance Survey is an executive agency of the United Kingdom government. It is the national mapping agency for Great Britain,[2] and one of the world’s largest producers of maps. The name reflects the original military purpose of the organisation (see ordnance and surveying) in mapping Britain during the Napoleonic Wars when there was a threat of invasion from France, and its logo includes the War Department’s broad arrow heraldic mark.
