Website last updated: Friday 24th May 2002 Friday 31st May: School Sponsored Walk Event in Gosford Forest Park You are visitor number to our site. Markethill is a small town in County Armagh, Northern Ireland, situated seven miles to the south-east of Armagh, and about twelve miles north-west of Newry. The school was established in 1959 and has grown both in terms of its pupil numbers and its ...