Bute
Carboniferous, Permo-Carboniferous and Palaeogene igneous rocks, columnar-jointed sandstone, Dalradian slates, schists and grits, along with the Highland Boundary Fault and Highland Border Complex.
Devonian sedimentary rocks and igneous structures, Clyde Plateau Lavas, glacial erratics, beach pebbles and post-glacial landscape features