An Taisce now owns the remaining portion of the once extensive Rossmore family estate in County Monaghan and extending into County Tyrone. The landholding comprises 2,200 acres, approximately two thirds of which is in County Monaghan and the remainder in County Tyrone. It comprises the unenclosed upland heathland area of Sliabh Beagh, which is the highest point in Monaghan and designated as a European Natura 2000 site for its ecological value on both sides of the border. Notably, the site supports one of the best blanket bog habitats in Ireland as well highly protected bird species such as the Hen Harrier. The lands are also designated as a Natural Heritage Area under the Wildlife Act 1976.

Area: 2,200 acres

Acquired by An Taisce: March 2020

Acquired from: the current Lord Rossmore