Dublin Castle Ireland (1800–1922). After the signing of the Anglo-Irish Treaty in December 1921, the complex was ceremonially handed over to the newly formed Provisional Government led by Michael Collins. It now hosts the inauguration of each President of Ireland, and various State receptions. The castle was built by the dark pool ("Dubh Linn") which gave Dublin its name. This pool lies on the lower course of the River Poddle before its confluence with the River Liffey; when the castle was built, the Liffey was much wider, and the castle was effectively defended by both rivers. The Poddle today runs under the
Dublin, New Hampshire slopes of Mount Monadnock occupy the southern part of town. The highest point in Dublin is along Monadnock's northeast ridge, where the elevation reaches above sea level at the town line. Roughly the western half of Dublin lies within the Connecticut River watershed, drained by tributaries of the Ashuelot River, with the eastern half located in the Merrimack River watershed, drained by tributaries of the Contoocook River. The town is crossed by New Hampshire Route 101 and New Hampshire Route 137. At the 2000 census, there were 1,476 people, 560 households and 417 families residing in the town. The population