Discover the Waterfalls of Upper Teesdale
28th March 2019
The reason Upper Teesdale is so famous for its spectacular waterfalls dates back nearly 300 million years. Molten volcanic rock solidified to create the Whin Sill, a thick sill of dolerite which is still a feature of the North East landscape to this day, resisting erosion and channelling the River Tees over steep drops, gentler […]
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