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Duns Castle nature reserve is a nature reserve near Duns,[1] in the Scottish Borders area of Scotland, in the former Berwickshire.
It consists of two man-made lakes, Hen Poo and Mill Dam; apart from the wetland, there are extensive woodland areas.
Places nearby include Abbey St Bathans, Chirnside, Ednam, Fogo, Gavinton, Polwarth, Preston.
55°47′24″N 2°21′22″W / 55.790°N 2.356°W