OS (Ordnance Survey)
Ordnance Survery ("OS" for short) - Britain's mapping agency. Makers of definitive maps - paper, weatherproof and downloadable - for all outdoor users in the UK.
We are blessed in the UK by having some of the very best maps in the world. Browse our huge range of OS maps at George Fisher ... and plan your next adventure!
Top tip: 'ACTIVE' maps are weatherproof. Heavier & more expensive but much more robust ... and you don't need a map case.