Trethevy Quoit 11
Image by Zeb

Yes and all 3 would be covered on top, the Anti chamber by the big main capstone, the middle big one would have a stone [or wood] on top and be resting on the angled backstone [that's why it's at that angle] and the little back chamber would also be covered, and if the whole thing had walling up to the main capstone it would make another big space above the 2 inner chambers, the anti chamber would have been open though and is the place at a lot of chambers that shows signs of ritual and fire, i'd just like you to know enough that you could see it next time your there, it's wonderfully simple and all the shapes on the stones suddenly make total sense, this is something that happened to me and Roy at the same time but at different places, i took what i've learnt there and made a lot more sense of mulfra as well, trouble is money been tight makes Cornwall further away i suppose, do you plan getting down this year?

Thanks for that, I can see what you mean now.

But your plan (an extra chamber at the west end of Zennor) seems different from what Roy is suggesting for Trethevy, unless I've misunderstood that. I think Roy is suggesting that the "existing" chamber at Trethevy was subdivided into two (by the sloping stone), whereas at Zennor you're adding another chamber beyond the "existing" chamber rather than dividing it into two.

bladup wrote:
Yes and all 3 would be covered on top, the Anti chamber by the big main capstone, the middle big one would have a stone [or wood] on top and be resting on the angled backstone [that's why it's at that angle] and the little back chamber would also be covered, and if the whole thing had walling up to the main capstone it would make another big space above the 2 inner chambers,
I may have misunderstood but if not . Zennor doesn't have an equivelant stone going from back to front creating two chambers as Roy has proposed for what I would call the backstone at Trethevy .
One other thing that effects both PT's and others is that there is no doubt that they had cairns , maybe up to the capstone in some cases but they needen't have went all the way up , and sloping sidestones could have been much as we see them today i.e. providing access and not necessrily "filled in ", why use them in the first place ? They could be an important focal point like no sidestones or the sloping capstone .