One year ago, a team of researchers traveled deep into the Honduran rainforest in search of Ciudad Blanca, the legendary lost city of treasures. Yesterday, they revealed images—uncovered by lasers—of structures that they believe to be the White City itself.
The legend of the White City has captured explorers' imaginations for centuries; Hernán Cortés detailed his interest in the purportedly gold-laden metropolis as far back as 1526. But the Mosquitia region where it was rumored to exist is densely packed with rainforest, and the conquistadors never penetrated deep enough to claim their prize.
Modern archaeologists have been just as stymied. Mosquitia has been the focus of a half dozen intensive explorations in the last century alone, some of which have yielded signs of some ruins and mounds. No one, though, despite their best efforts, had found anything close to a full city structure.
The team of researchers from the University of Houston, though, had something none of those expeditions did. They had lasers.
The National Center for Airborne Laser Mapping does just what you would think; uses highly advanced lasers to see things the human eye can't. Specifically, in this case, the team—led by a Los Angeles-based filmmaker—used a Lidar system to penetrate the thick foliage of Mosquitia and discover the treasures that lay beneath.
Lidar itself isn't particularly new. Developed in the 1960s, it was originally used to measure cloud densities, but comes in handy today for everything from mapping the Amazon rainforest to hunting down modern-day pirates. In this implementation, the system spits out laser pulses and measures how they're reflected off vegetation and the ground, to map the surface hidden beneath the forest's canopy.