England
Holm/skerry
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Part of the England islands map and the Orkney collection.
Bedrock: Unnamed Igneous Intrusion, Carboniferous To Permian (Felsic-Rock), Carboniferous–Permian. Superficial deposits: River Terrace Deposits (Undifferentiated) (Sand And Gravel). 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.