Arthur’s Seat (an extinct volcano) and Salisbury Crags (a classic sill) in Holyrood Park, plus the iconic Castle Rock and Calton Hill.
Coniston Coppermine Trail
Volcanic exposures in the Cumbrian Lake District, mining heritage, stunning scenery and a hard walk.
Rugged Cornish scenery, late Devonian pillow lavas, slate revealing some of the most important strucutres in Southern Britain...
An internationally-important tor, in Cornwall, composed entirely of quartz and tourmaline, topped by a chapel.
The Whin Sill
A quartz-dolerite sill emplaced in the late Carboniferous approximately 295 million years ago as a result of tectonic forces following the Variscan orogeny.