On Mick and Gayle’s last post
http://www.gayleybird.blogspot.com/ they discovered a footpath had changed on the map – they were using an older map and found the change updated on a newer version when they got home.
With route and location finding I have found the map is usually correct. On my last trig points outing (see my Post 55) this was not true. I had difficulty finding the trig at Kelleth NY 664 067 because it was against a high drystone wall and only visible from the side of the wall we were
not on. I was trying to position myself in relation to a mature, deciduous wood that must have been there for over fifty years and measuring perhaps 200m x 200m. This wood turned out to be south-east of the trig and is not shown on the 1:50000 or on the 1:25000 maps although woods to the north of similar size are.
If I can’t make things fit, especially if hot and bothered, or if I’m being blown off my feet by the wind
I try to find somewhere to sit down and think it all out carefully. It is so easy to convince yourself that you have made things fit when you haven’t, but if the map is wrong you are unfortunately thrown back onto your, hopefully, vast store of experience.
I have been playing with my Memory Map 2800. Following a footpath on the map there is sometimes a discrepancy between the GPS cursor on the map and the footpath on the map, despite the fact that you know for certain you are on the path. I am not sure whether this is down to inaccurate plotting of the path by the OS or to the vagaries of GPS.