Slickensides (6 items)

    • P007989
    • Creigiau Quarry, Llansannan.
    • P007990
    • Creigiau Quarry, Llansannan.
    • P213205
    • Ewenny Quarry.
    • P222448
    • Croxden Quarry, Freehay 1 1/4 m. (3...
    • P222515
    • Wyresdale Tunnel (Lune-Wyre Link) SE of...
    • P208467
    • Penmaen, roadside 55 yd. E. by N. of...