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How accurate are OS maps?

Ordnance Survey maps are renowned for their accuracy, often considered among the best in the world. They use precise surveying methods, including aerial photography and ground surveys, to ensure details like footpaths, contours, and buildings are depicted correctly. This reliability is a key reason why they've seen a sales revival, as mentioned in the story, offering a trustworthy alternative when digital navigation fails.

Stories that explain this

Paper maps outsell GPS, even tripling demand in some cities

Questions this opens up

How do they map Britain? What is a contour line? Are all maps accurate?

Related explainers

Benefits of 'old school' maps Is GPS always accurate? Why do I get lost less with maps? How do maps improve memory? Do maps make you smarter? Why paper maps are back How does active learning help? What is cognitive mapping?

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