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Unlike a conventional map, aerial photography makes it possible to see what is actually on the ground and this enables users to pick out prominent features, which might range from old industrial buildings to tree belts, brooks, ponds and even archaeological features which were previously unknown.

Early datasets (around the year 2000) tend to be captured at 25cm resolution with increasingly common capture at 12.5cm since.

Aerial imagery coverage for this source is available for the whole of England and Wales with many areas captured more than once.

centremapslive.com recommends Global Mapper as an extremely useful tool for handling purchased aerial imagery - particularly large or tiled data.