Sunkenkirk 7
Image by Chris Collyer

I'll bet there's something in Gwenhyfar's Chair - near the top. Glacial debris, of all sizes, usually ends up on the flat side, like a piece of toast. The grooves are supposedly the marks of the comb that she deflected the rock with. (Just that myth alone suggests the stone was raised). Has anyone measured its height ?

>grooves are supposedly the marks of the comb that she deflected the rock with

It's commonly supposed so, but I think not, the stone with the grooves is actually said to have landed about a mile to the NW.

I know where it is, but I'm not telling. I know what you're saying about the odd angle of that erratic, but that's a tale for a different thread, on a different day, after a fair bit of investigation which hasn't happened yet.