Geology
The summit area is composed of the dacitic lapilli-tuff of the Helvellyn Formation. The overlying volcaniclastic sandstone of the Deepdale Formation is revealed at Keldas.
Read more about this topic: Birkhouse Moor
Geology
The summit area is composed of the dacitic lapilli-tuff of the Helvellyn Formation. The overlying volcaniclastic sandstone of the Deepdale Formation is revealed at Keldas.
Read more about this topic: Birkhouse Moor