Lidar (the technology mentioned in the article) is completely changing the field of archaeology. If you have access to the New Yorker, this article (http://www.

Lidar (the technology mentioned in the article) is completely changing the field of archaeology. If you have access to the New Yorker, this article (http://www.newyorker.com/reporting/2013/05/06/130506fa_fact_preston http://www.newyorker.com/reporting/2013/05/06/130506fa_fact_...) is well worth a read.