South Cornwall - Geology
Elvan Dyke - Polrudden Cove (S28)
The fine-grained Elvan of Granitic composition , was quarried in and at the top of the cliff .
The Elvan can be traced inland for about half a mile to an overgrown quarry in the valley behind Pentewan Village
The probable source of most of the Stone - Pentewan Stone - used in old buildings.
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Location - East of Pentewan - In gallery 28
Ref: 836
Date: 08/02/2015
Location: SX 0254 4739