>Even better why not make an expedition to it and get some proper photos?
One of these days I shall make it down that way. Like you, I reckon there's prehistoric stuff still extant. Plus I'd like to see 'Wall'. And apart from anything else, it's corking good landscape.
Am I correct in my thought that the gist of what you are saying is that you're argung that cairn such as the cobs are (relatively) recent constructions built on the same spot as prehistoric cairns? As would be indicated by the peat accumulation at their bases?
Sorry if it feels like you're being criticised unduly, but I think that if you get flak here on tma for posting pics of modern looking cairns, it's due to concerns over where the line is drawn in terms of 'probability of prehistoric-ness' in regard to suitability of content on this website. And you've got to admit, that compared to sites that have been long documented, you are pushing the boundary somewhat. But there's nowt wrong with that, heck, I've posted a couple of slightly iffy sites here (and refrained from doing so with a shedload of others), so I know where you're coming from :)