Laser technology is being used to locate potential archaeological sites hidden by woodland in Worcestershire.
The hope is that ancient settlements and farms across the Wyre Forest will be detected by lasers fired from aircraft 3,300ft (1,000m) up.
The results are processed by computers and turned into images of the ground, currently hidden by trees.
This seems new to me, but I know it shouldn't be. I'm assuming it means they're looking for topographic features not visible in the scale used by existing topo maps and not visible from photographs due to vegetation.