Trough

The Battle of the Yellow Ford was fought in County Armagh on 14 August 1598, during the Nine Years' War in Ireland. An English army of about 4,000, led by Henry Bagenal, was sent from the Pale to relieve the besieged Blackwater Fort. Marching from Armagh to the Blackwater, the column was routed by a Gaelic Irish army under Hugh O'Neill of Tyrone. O'Neill's forces divided the English column and a large earthwork stalled its advance. Bagenal was killed by an Irish musketeer, and scores of his men were killed and wounded when the English gunpowder wagon exploded. About 1,500 of the English army were killed and 300 deserted. After the battle, the Blackwater Fort surrendered to O'Neill. The battle marked an escalation in the war, as the English Crown greatly bolstered its military forces in Ireland, and many Irish lords who had been neutral joined O'Neill's alliance.

Truagh (; Irish: An Triúcha) is a barony in the north of County Monaghan in Ireland.

Castle Leslie, also known as Glaslough House, is home to an Irish branch of Clan Leslie, is located on the 4 km² (1,000-acre) Castle Leslie Estate adjacent to the village of Glaslough, 11 km (7 mi) northeast of Monaghan town in County Monaghan, Ireland.

Glaslough ( glas-LOKH; Irish: Glasloch, meaning 'green lake') is a village and townland in the north of County Monaghan, Ireland, on the R185 regional road 3 km (2 mi) south of the border with Northern Ireland and 10 km (6 mi) northeast of Monaghan town. Glaslough won the Irish Tidy Towns Competition in 1978 and again in 2019.

Glaslough railway station was on the Ulster Railway and is located in the Republic of Ireland. Upon the Partition of Ireland in 1921 it became the first station south of the border on the line.