is an island lying in Western Europe
. It is bound on the North, West and South by the Atlantic Ocean and on the East by the Irish Sea
, on the North-East by the North Channel and on the South-East by St. Georges Channel.
A ring of coastal mountains
surrounds low central plains
. The highest peak is Carrauntuohill
, which is 1041 m. The island is bisected by the River Shannon
, at 259 km the longest river in Ireland or Britain.
The island of Ireland consists politically of the Republic of Ireland and Northern Ireland