England
Nag's Head Island is an island in the River Thames in Oxfordshire, England at Abingdon. It sits in the middle of the two Abingdon Bridges on the reach above Culham Lock.
Open on the map →Part of the England islands map.
Bedrock: West Walton Formation, Ampthill Clay Formation And Kimmeridge Clay Formation (Undifferentiated) (Mudstone, Siltstone And Sandstone), Oxfordian–Kimmeridgian. 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.