The Green Line (Astrallic: Leaoinne nUoainneach or Liôny nWbhînych, Fernolian: Line Guiruidh) or Northern Line (Leaoinne a' Nuardh or Liôny a'Nwr, Line tÓ Nuardh), also known as Winter Line (Leaoinne Geauimhuirreacheal or Liôny Gwrchyl, Líne na Géaifheal) is a Rockallic train line between Chuainn na Shléoibhainn in An Móir Leautheinn and Deubhnith na iÁnna in Cóste Ígheainne, as well as connecting the two northern Viscountcies' capital cities of Nuardhtheaobhoinn and Régnich na Nuardh, and serving several towns in villages in both viscountcies.