This plot shows the route I took to and from the point. Basically, walk
out on a dirt track, wander around on a dull hillside trying to get a bead
on the target, then zoom in. Walk back out on a slightly different tack.
Wait in the 'Boat' bar while the rest of the guys get lost.
This plot shows the terminal approach, where I finally got onto the correct
hill (well, the others had the map - I only had the blank screen
of the GPS and a memory of the map.). Approach from the East, keeping on
the numbers, then sweep to and fro to locate the exact point. Exit the hill
to the NW, along the line of the fence Robin Webb mentions. There's no significant
advantage underfoot.
Notice that my point is not exactly on the intersection.
Let's quantify that.
This is essentially the same plot as above, but it's got a grid in OS
metres. Each grid line is 10m from it's neighbours.
Yes, I was taking 1 minute readings on a N-S then E-W grid to "bracket" the
point. The machine's accuracy was stated at the time as being 5~7m and I
was making position shifts of a couple of paces (~2m). I'm going to have
to get a DGPS system and weld it to a benchmark somewhere.