Useful mapping and map related resources

Maps of London 

Old maps of the City of London and the London Boroughs

Ordnance Survey   

The national mapping agency of Great Britain

Ordnance Survey of Northern Ireland

Ordnance Survey Ireland

Trout and salmon Fishing   Featuring detailed maps of the fishing rivers and lochs of Scotland

Sea Trout Fishing  Featuring maps and photographs of British sea trout rivers

British Coast Maps  Maps of the entire coastline of Great Britain