FROM THE AIR
At a speed of 70 metres per second the plane flies at a constant altitude over the jungle and directs hundreds of thousands of infrared laser pulses towards the ground. By identifying the laser points that reach and reflect off the ground, the tree canopy can be digitally stripped away, leaving a bare-earth topographic model. The problem: LIDAR technology doesn’t come cheap – scanning the three valleys in La Mosquitia cost Elkins a cool $250,000.
ENLARGED VIEW EVIDENCE OF RECTANGULAR, MANMADE STRUCTURES