We use some essential cookies to make this website work. We’d like to set additional cookies to understand how you use data.gov.uk and improve the service.
You can change your cookie settings at any time.
These are locations which are hazardous, and caution should be taken to ensure safe travel. Hazards are usually signed using the warning sign through a red triangle.
All datasets from Ordnance Survey
Is this data useful? Give us feedback
customerservices@os.uk
foi@os.uk