Rossmore Forest Park is located only two miles southwest of Monaghan Town and covers a large area of approximately six by three miles. It was formerly part of the Barony of Rossmore created in 1796 and covers over 320 hectares with many forest walks, a wonderful play park for children, a giant sculpture trail and remnants of its past life as an estate. Within its bounds are five fishing lakes. The forests are primarily deciduous with numerous fine specimens of oak, ash, spruce, beech, larch, and giant redwood. It also boasts extensive plantings of rhododendron, many of which were planted over a hundred years ago and are a riot of colour in early summer.

There are great walks within Rossmore Forest Park. The park has well maintained paths, several of which are suitable for wheelchair bound visitors. These walks range in length from two to four miles and are well posted. The most scenic, the Priestfield, with its colonnade of yews, is approximately three miles long and leads past the Rossmore family crypt.

Facilities include a spacious car park, clean toilets, picnic tables, litter bins, and a large, weather-protected map of the entire park and its trails.