The entire face of the back slab viewed
through the segmenting stones.
This huge slab is 1.4m high, its width is unknown as it disappears into
the walling at each side, but the stone is at least 1.6m wide.
The flat top edge of the slab is set level and the whole stone leans backwards.
Just visible at its base are two large embedded chock stones.
There is only a gap of about 0.5m between the back slab and the rear of the
segmenting stones, so this is the only spot where a complete
view of the back slab surface is possible. Although this area appears large, the
above photo was taken using a fisheye lens with an extreme
angle of view, to put this in perspective, the distance between the mid edges of
the segmenting stones is only 90cm.