Geology
Geologically the summit area is andesite, overlaying the St Sunday Crag Member, a 50m thick layer of rhyodactic lapilli-tuff which breaks the surface on the east ridge.
Read more about this topic: St Sunday Crag
Geology
Geologically the summit area is andesite, overlaying the St Sunday Crag Member, a 50m thick layer of rhyodactic lapilli-tuff which breaks the surface on the east ridge.
Read more about this topic: St Sunday Crag