Ardnamona Wood Nature Reserve is a beautiful 46.6-hectare oak forest located about 5 kilometres north-east of Donegal Town, just west of Lough Eske. The property is made up of ancient oak forest, which is classified on Annex 1 of the EU Habitats Directives.
The woods is scientifically significant due to its size, ecological history, and flora. The wood has dry sections dominated by Oak, as well as moist woods with Alder, Ash, Rowan, and Downy Birch in the upper canopy and Holly, Hazel, and Willow in the understory. The Killarney Fern, a red data book species listed in Annex. of the Habitats Directive, also lives on the site. There are also two additional uncommon plants present: Whorled Caraway and Six-stamened Waterworth.
