Missing a Trig ...

It maybe missing a trig but five trig baggers combine were able to work this one out. DAL ie David Lever found this one as Ted confirms. This is a super cache in a wild moorland summit. The log book was fine so Paul H needs to correct his log. Dusty just what was in that "whisky cake"? I thought I was drunk on the way home to Grimsargh.

Done