UK Atlas of Seabed Habitats: Mosaic of Localised Maps v2025.1 dataset https://portal.medin.org.uk/portal/start.php?tpc=010_fc179315-82cf-474c-ab0a-7dd7c73f9536 The UK Atlas of Seabed Habitats (UKASH) Mosaic of Localised Maps is a composite of multiple data sources in the form of polygons. It takes the Library of Localised Maps and integrates these into a single, non-overlapping map product for the UK seabed, including the intertidal zone, but only where localised habitat maps exist. Where maps overlap, we have selected the most reliable according to set criteria. Source maps vary in terms of spatial and thematic detail. All original classifications and the provenance of individual polygons is preserved within the data product/data inventory. Standardised fields containing the EUNIS v2007-11 and Marine Habitat Classification for Britain and Ireland (v 22.04) habitat classification information are also provided. This product presents a rapid, single view of habitats as determined from localised habitat maps, without the possibility of having to query several overlapping pieces of information that may be present in the Library of Localised Maps. 20250411 20250411