The excavation report was published, but is like rocking horse shit to find. I have some info in a couple of books. I have been told about most of the stuff from up there at some point, so if you want to email me with your query I can probably tell you.

The (very) basics are: there's 3 passage tombs up there. One has carvings on the a couple of its orthostats and a shallow basin. Another has a monster basin with a carving on it. There are several cists in the mound and three kerbs are visible, showing where each tomb was laid over the earlier ones.

Only the area inside the modern wall was excavated.