Catchment boundaries for England, Scotland and Wales based on existing Fish Health Inspectorate (FHI) and SEPA catchments (WGS84) 2023 dataset https://portal.medin.org.uk/portal/start.php?tpc=009_CEFASabaec233-69b5-485e-930c-cc5b419e24f3 This dataset contains the boundaries for river catchments in England, Scotland and Wales based on the dataset `Hydrological sections for England, Scotland and Wales with associated river catchment 2023, Water Framework Directive (WFD) waterbody and regional information (WGS84)`_ These catchment boundaries have been derived from hydrological sections, have boundaries almost identical to existing Fish Health Inspectorate river catchments, and include complete coverage of the waterbodies under the Water Framework Directive. Note this dataset includes catchments in England, Scotland and Wales. Scotland catchments are taken from Scottish Environment Protection Agency (SEPA) catchments. For coverage of England and Wales only use `Catchment boundaries for England and Wales based on existing Fish Health Inspectorate (FHI) catchments 2023 (WGS84)`_ There are 2 versions of the dataset; a geographical coordinate reference system (CRS) WGS84 (EPSG 4326) and a projected CRS British National Grid (BNG - EPSG 27700) see `Catchment boundaries for England, Scotland and Wales based on existing Fish Health Inspectorate (FHI) and SEPA catchments (BNG) 2023`_ .. _`hydrological sections for england, scotland and wales with associated river catchment 2023, water framework directive (wfd) waterbody and regional information (wgs84)`: https://data.cefas.co.uk/view/21968 .. _`catchment boundaries for england and wales based on existing fish health inspectorate (fhi) catchments 2023 (wgs84)`: https://data.cefas.co.uk/view/21755 .. _`catchment boundaries for england, scotland and wales based on existing fish health inspectorate (fhi) and sepa catchments (bng) 2023`: https://data.cefas.co.uk/view/21967 20240730 20231206