The middle section of the passage.
The second set of paired upright slabs set into the sidewalls can be seen here,
this pair has been set with the tops sloping to the west.
This is the narrowest part of the passage at 38cm wide, there is also a distinct
turn in the passage direction to the north here.
The third set of paired uprights are not visible from here as they have been recessed into
the sidewalls. The chamber portal stones and interior
can be seen in the background.