Laser scanning at Stonehenge

Laser scanning at Stonehenge began in 2002 with a survey of Bronze Age carvings on stone 53, a sarsen trilithon. A team from Wessex Archaeology and Archaeoptics used a Minolta Vivid 900 scanner to record the dagger and axes at 0.5mm resolution, producing a point cloud later processed into a 3D model. The work revealed two previously unknown flanged axes, one with two lugs along its shaft. In 2011 English Heritage commissioned a full high-resolution scan of all visible stone faces and a lower-resolution scan of the ground in the Stonehenge Triangle.