Geology - Pembrokeshire
A Silurian Rock formation of Vertical beds of Ferruginous Sandstone on Marloes Sands .
A 4th chimney was dislodged during gales in 1954 .The Strata of the Llandovery
sediments - Skomer Volcanic Group - are almost vertical here
In Gallery 3.3
Ref: 1679
Date: 26/11/2008
Location: SM 785.074