AlejoHausner writes "A team of archaeologists scanned the jungle of Belize with lidar. Although most of the reflections came from the jungle canopy, some light reflected off the ground surface. Using this, suddenly hidden pyramids, agricultural terraces, and ancient roads are revealed, at 6-inch resolution. The data allowed the archaeologists to bolster their theory that the ancient city of Caracol covered more than 70 square miles of urban sprawl and supported a population of over 115,000."
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