Re: Bob's Bits.
Anzac,Thanks for your compliments, and glad you are enjoying my writing.
I try to keep it fresh and interesting.
Cairns are often placed on high points but mainly to mark out a route and as an aid to navigation. They would sometimes identify a particular spot or as a memorial.
They would be built by anyone passing that way, and each time a walker would pass by, they would add another few stones, so some cairns are very large indeed.
Triangulation Pillars [Trig Points] were constructed by Ordnance Survey specifically to map the country. An instrument similar to a 'theodolite' would be placed on a special fitting on top of every Trig Point, and was used to calculate distance and height. This has since been replaced by Lasers.
Bird, Thanks for your interest in Trig Points. Unfortunately I have been unable to locate one in the Flamborough area; However, I have successfully located one North of Scarborough at grid Ref SE990966 should your map reading be a little rusty you will find it thus:- Take the Whitby road [A171] North out of Scarborough, pass through Cloughton, and after passing Cloughton woods on the left, you will arrive at a left turn [about two miles out of Cloughton] Take the left turn and stop immediately. Inside the small triangle made by the two roads you will find the Trig Point. Good hunting....