Crown Dependency
Bird sanctuary; 2 seasonal residents
Open on the map →Part of the Crown Dependency islands map.
Scottish Gaelic: Eireag Mhanainn; Irish: Yn Cholloo; Manx: Yn Cholloo
Bedrock: Unnamed Igneous Intrusion, Ordovician To Silurian (Mafic Igneous-Rock), Ordovician–Silurian. Contains British Geological Survey materials © UKRI 2026, licensed under the BGS Open Data Licence (OGL v3.0). Source: BGS DigMapGB-625 Bedrock & Superficial WMS.
Last reviewed: 2026-08-13.