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Tenby
This plan of the Pembrokeshire coast shows the deep-sea port of Tenby at lower right and the River Cleddau Valley, with its broad tidal estuary flowing into Milford Haven, at lower left. Tidal rivers, called 'pills' on this plan, are a peculiar feature of the south Pembrokeshire landscape. Along the banks of one of the pills is the small settlement of Carew with the remains of an 11th-century castle and tidal mill indicated.
The British Library1809