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Llyn Cwmystradllyn (Reservoir)

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Llyn Cwmystradllyn reservoir, north of Porthmadog. Oblique aerial photograph taken during the Royal Commission's programme of archaeological aerial reconnaissance by Toby Driver on 2nd October 2015.

Gorseddau slate quarry and Llyn Cwmystradllyn reservoir, north of Porthmadog. Oblique aerial photograph taken during the Royal Commission's programme of archaeological aerial reconnaissance by Toby Driver on 2nd October 2015.

RCAHMW colour oblique aerial photograph showing landscape view of Llyn Cwmystradllyn Reservoir. Taken on 25 January 2007 by Toby Driver

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Royal Commission on the Ancient and
Historical Monuments of Wales

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