The Highland Boundary Fault, which separates the Highlands from the Lowlands, with metamorphic rocks to the north and sedimentary rocks to the south.

Campsie Glen

Take a step back in time at Campsie Glen! Here you can stand on the site of an ancient lagoon, and climb your way up through a series of ancient lava flows – a remnant of the Campsie Hills volcanic past. 


A Palaeogene quartz-feldspar-porphyry sill displaying massive columnar jointing, with members of the Palaeogene dyke swarm.