Hi Postman - some of the rollrights stones have been broken, and some lost, but there's enough there intact to draw the comparisons with Beltany. In fact the more I look at Cian Mcliam's picture, the more I think how alike they are! I can see what Slumpystones means by Nine Stones Close stones, but they are much larger and are not as closely assembled.
I just think it's amazing that two sites of roughly the same dimensions, sizes of stones, number of stones, shape of stones exists but so far from each other.