The Poisoned Glen lies at the foot of Mount Errigal, the tallest peak of the Derryveagh Mountains range, in Dunlewey (Dún Lúiche) in the Donegal Gaeltacht. The Poisoned Glen is one of the most renowned areas in Co. Donegal for its sweeping valleys, imposing mountains and shimmering lakes. It is very true to say the magnificent beauty of this area is such a capturing sight that it remains as a sanctuary in your mind forever of a very special place.

For the hike towards the mountain and getting this photo you can park right here: 55°01'02.7"N 8°06'36.7"W. Be aware that in the summer there is a lot of mosquitos in this area because it is quite boggy.