Sheet E136
The map extract above is from BGS 1:50 000 scale sheet E4 Holy Island (Solid with Drift), and shows what can be seen on a Solid with Drift map.
Geological maps illustrate the nature, extent and relative age of rock types to be found in a district. Solid with Drift maps show the 'solid' (bedrock) geology, together with abridged information for the ‘drift’ deposits (such as peat and glacial deposits). Drift deposits are shown on the map by a uniform colour or by ornament.