Magic maps

https://magic.defra.gov.uk/

Mapping GM

https://mappinggm.org.uk/

Rochdale borough Unitary Development Plan June 2006 and other planning policy maps:

https://www.cartogold.co.uk/rochdale/

Election Maps (useful for finding boundaries, etc)

https://www.ordnancesurvey.co.uk/election-maps/gb/

Wind turbine locations around the world

https://turbinemap.ventodyne.com/

Peatland Mapping by The Campaign for the Protection of Rural England

https://experience.arcgis.com/experience/2de81f5bd54f48e99771549e0b4746d0/