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The Whin Sill forming the top of High Force Waterfall.WS = Whin Sill, S= metamorphosed sandstone, TBL= Tyne Bottom Limestone. Photo: courtesy, Derek Teasdale. Annotation: from Northumbrian Rocks & Landscape, Yorks. Geol. Soc.



Return to field trip reports.	The Whin Sill forming the top of High Force Waterfall.WS = Whin Sill, S= metamorphosed sandstone, TBL= Tyne Bottom Limestone. Photo: courtesy, Derek Teasdale. Annotation: from Northumbrian Rocks & Landscape, Yorks. Geol. Soc.