2018
NY7868 : Whin Sill near Housesteads
taken 6 years ago, 4 km N of Bardon Mill, Northumberland, England
Whin Sill near Housesteads
Whin Sill is an igneous intrusion which has formed a long almost linear escarpment north of the Tyne Valley. The Romans used the natural barrier as the border of their province of Britannia and fortified it by building Hadrian's Wall along the top. The view here is eastwards on the north side of the crags.
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