The Mourne Mountains ( ; Irish: "na Beanna Boirche" ), also called the Mournes or Mountains of Mourne, are a granite mountain range in County Down in the south-east of Northern Ireland.
 It includes the highest mountains in Northern Ireland and the province of Ulster.
 The highest of these is Slieve Donard at 850 m .
 The Mournes is an Area of Outstanding Natural Beauty and has been proposed as the first national park in Northern Ireland.
 The area is partly owned by the National Trust and sees a large number of visitors every year.
 The name "Mourne" (historically spelt "Morne") is derived from the name of a Gaelic clann or sept called the "Múghdhorna".
Glen River is a short river in County Down, Northern Ireland.
 The two mile course flows north east from the foot of Slieve Commedagh and Slieve Donard in the Mourne Mountains into Dundrum Bay at Newcastle, descending 1,500 ft .
Donard Forest is located near Newcastle, County Down, Northern Ireland.
 It borders Donard Park at the foot of the Mourne Mountains.
 The Glen River flows through the forest where it is crossed by three stone bridges.
 The north east section of the forest contains a Heritage Stand of Scots and Corsican pine planted in 1927.
 A south east section, beside the Glen River, was the former site if Donard Lodge.
 The lodge was built in the 1830s by the Annesley family and demolished in 1966 after falling into ruin.
 The Annesleys planted a number of exotic trees in the area surrounding the house, including Giant Redwoods and Monkey Puzzles.
 There is also a small stone shelter, built in 1842, a short distance from the river.
Slieve Commedagh (from Irish: "Sliabh Coimhéideach" , meaning "mountain of guarding/watching" ) is a 767 m (2,516 ft) mountain in County Down, Northern Ireland.
 It is the second-highest of the Mourne Mountains, after Slieve Donard, and the second-highest mountain in Northern Ireland.
Donard Park is a public park located in Newcastle, County Down, Northern Ireland.
 It is next to the Glen River, which forms the boundary along one side and is at the foot of Slieve Donard, the highest mountain in Northern Ireland, part of the Mourne Mountains.
 It is owned and run by Down District Council.
Newcastle is a small seaside resort in County Down, Northern Ireland, which had a population of 7,444 at the 2001 Census.
 It lies on the Irish Sea at the foot of Slieve Donard, one of the Mourne Mountains, and is known for its sandy beach and the Royal County Down Golf Club.
 The town lies within the  Newry, Mourne and Down District Council area.
Tollymore Forest Park was the first state forest park in Northern Ireland, established on 2 June 1955.
 It is located at Bryansford, near the town of Newcastle in the Mourne and Slieve Croob Area of Outstanding Natural Beauty.
 It covers an area of 630 ha at the foot of the Mourne Mountains and has views of the surrounding mountains and the sea at nearby Newcastle.
 The Shimna River flows through the park where it is crossed by 16 bridges, the earliest dating to 1726.
 The river is a spawning ground for salmon and trout and is an Area of Special Scientific Interest due to its geology, flora and fauna.
Slieve Donard ( ; from Irish: "Sliabh Dónairt" , meaning "Dónairt's mountain" ) is an 850 m mountain in County Down, Northern Ireland.
 Part of the Mourne Mountains, it is the highest peak in Northern Ireland and in the wider province of Ulster.
 It is also the 19th highest peak on the island of Ireland.
 Slieve Donard sits near the town of Newcastle on the eastern coast of County Down, only 2 miles (3 km) from the Irish Sea.
Murlough Nature Reserve lies on the coast of County Down in Northern Ireland, situated close to Newcastle.
 It has views of Slieve Donard, the highest peak in the Mourne Mountains and Dundrum Bay.
 Its 6,000-year-old sand dune system has been managed by the National Trust since 1967, when it became Ireland's first nature reserve.
 Grid ref: J414351.
Slieve Binnian (from Irish: "Sliabh Binneáin" , meaning "mountain of the little peak" ) is one of the Mourne Mountains in County Down, Northern Ireland, 9km north of Kilkeel.
 It is the third highest mountain in Northern Ireland at 747 m .
 The summit is broad and flat with rocky tors at the north and south ends, with the "Back Castles", impressive towers of granite, in between.
 To the south-west is Wee Binnian (from Irish: "Broinn Bhinneáin" , meaning "breast of Binneán" ) (460m).
 It lies to the east of the Silent Valley Reservoir and the west of the Annalong Valley.
 The Mourne Wall also crosses over Slieve Binnian.

Question: In which area of Northern Ireland will you find Murlough Nature Reserve, situated close to Newcastle, and with views of an 850 m mountain which is part of the Mourne Mountains and is named Slieve Donard?
Answer: County Down