image: Green mudstones of the Collin Glen Formation overlain by mudstones and shales of the Rhaetian Penarth Group (contact marked by black line), exposed alongside promenade at Waterloo.
Green mudstones of the Collin Glen Formation overlain by mudstones and shales of the Rhaetian Penarth Group (contact marked by black line), exposed alongside promenade at Waterloo.
 
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