The Moine Thrust runs through the crag and there is a small visitor centre providing interpretation and artwork that explains the background to the 'Highlands Controversy' concerning the geology of the area.
The main issue was that the Moine schists at the top of the crag appeared to be older than the Cambrian and Ordovician rocks such as Durness limestone lower down. Murchison and Geikie believed the sequence was wrong and that the Moine schists must be the younger rocks. The conundrum was explained by the action of a thrust fault - this being the first to be discovered anywhere in the world. The older rocks had been moved some 70 kilometres east over the top of the younger rocks due to tectonic action. A monument to Peach and Horne's work was erected by the international geological community at Inchnadamph a few miles to the north.
There is a visitor interpretation centre, and various walks along the crag explaining the features and including artwork such as 'The Globe' by Joe Smith.