LIDAR, or Light Detection and Ranging, is a relatively new technology available to archaeologists to investigate ancient landscapes that are both remote and large in scale. In many parts o the world that hold vestiiges of ancient civilizations, archaeological "discoveries" are mostly those sites that were known to local or indigenous communities (through first-hand knowledge or oral histories) but were simply verified by western scientific investigation. A recent discovery in the remote jungles of Honduras, however, using LIDAR seems to be the real deal—a remote Mayan site that truly had been list to time.
An Ancient City Emerges in a Remote Rainforest
By Douglas Preston
The New Yorker
January 1, 2017