Free Ordnance Survey maps online
A project to make a highly detailed set of Ordnance Survey maps available to web users has hit a new milestone.
The National Library of Scotland (NLS) first began adding 25-inch-tothe-mile maps to its website in March 2015, covering London and counties in south-east England.
However, the resource now extends across to the West Country, taking in the additional counties of Berkshire, Cornwall, Devon, Dorset, Hampshire, Hertfordshire, Middlesex, and Oxfordshire.
Dating from the 1890s to the 1920s, the digitised maps have also been ‘georeferenced’, meaning it is possible to view them as a transparent layer on top of modern satellite imagery.
“The 25-inch maps are immensely valuable for family and local history, allowing practically all natural and man-made features to be seen with clarity,” said NLS senior maps curator Chris Fleet. “The maps are also the most detailed Ordnance Survey scale to cover virtually all of England and Wales – only larger towns were mapped in greater detail – and so they became used for a very wide range of purposes.”