Mapping: 3D Laser Scans of Britain Reveal Ancient Roman Roads

For the past 18 years, the U.K.’s Environment Agency has used a remote sensing methodcalled LIDAR (short for Light Detection and Ranging) to scan and map 72 percent of England’s surface. The 3D terrain images are used to monitor changing coastlines and model floods. But the maps recently revealed something else: an exciting archaeological find. Within the images, experts spotted miles upon miles of ancient Roman roads that may date back as far as the first century CE. Click to read more…