Calakmul lidar survey2 (IMAGE) University of Calgary Caption Image of the Calakmul lidar survey. Copyright, Bajo Laberinto Archaeological Project and Instituto Nacional de Antropología e Historia. Credit Copyright, Bajo Laberinto Archaeological Project and Instituto Nacional de Antropología e Historia. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.