• P233333
    • Crich Road, Shirenewton. Jointing and...
    • P234862
    • Entrance to the Severn Tunnel. Icicles...
    • P234863
    • Shirenewton. Sink in Carboniferous...
    • P234866
    • Shirenewton. Fracture of Carboniferous...
    • P235692
    • Severn Tunnel cutting. Water-bearing...