YESSS! Success and a first-to-find!
We spotted this newly listed cache on the 30th and were quite keen on the challenge! But before Elizabeth could take graphite to an innocent map, Simon interjected, "Surely you, a maths major, can figure out a way to calculate it!"
"Hmmm," she said, and spent the better part of the afternoon immersed in coordinate geometry. Result! And a sensible one at that, so, immediately after work, we raced off.
Unfortunately, when we reached the location, our GPSr refused to acquire and maintain a sensible signal, and nothing we did persuaded it to cooperate. There were many likely locations, so we attempted an "it must be in the general area" search, but we soon had to give up as night enveloped us.
The next day, Simon made OS printouts and sat down with a pair of compasses and a straight-edge (we're strict Euclideans in this house! ) to plot and bisect by hand. He came up with nearly the same result as what Elizabeth had calculated.
Armed with confidence and the giant Maglite, we set out again today. It was such a beautiful evening, and we had the entire place to ourselves, except for one escapee sheep whom we inadvertently chased up a track before it became bold enough to turn and run back past us.
We had better GPS reception this time, and it took us right back to the same location we'd searched through two days before. (We must have been able to smell it!) After about 10 minutes, Simon came up triumphant. Huzzah!
What a great puzzle! And what a fantabulous location! We love the trees here -- we'd been through last year on a long route up to the Sugar Loaf -- and think it's one of the funkiest places we've visited.
Diolch yn fawr i'r bocs celcio!