I wouldn't care to comment on the structural aspects of this site, I know nowt of chambered cairns, and this seems to be a fairly non-standard, complex one.
What I can say is that it's easy to get to, and it's worth a quick wander about the immediate vicinity, as there are traces of features lurking in the long-grass.
This is one of the few Hebridean Passage Graves to be located on the mainland. It is close to the Isle of Skye so not far away from the usual territory.
The most visible remains are a capstone partly covering the small rectangular chamber. Traces of the E-facing passage can also be seen.
Excavation in 1965 showed that the cairn had been enlarged from a round one to a square one and that a facade had probably been added to the E side of the cairn. An interesting change of design which would bring it closer to a Clyde cairn layout.
The excavation mentioned above "did not reveal skeletal remains, but artifacts included sherds of Neolithic pottery and undecorated Beaker, lignite beads, a stone spindle whorl and flint artifacts including a leaf-shaped arrowhead"