The first systematic attempt to map the antiquities

 
In 1878, archaeologist and historian Ernst Curtius, and cartographer and topographer Johann August Kaupert undertook a systematic mapping of the antiquities in the region of the Western Hills. As it is mentioned in the explanatory notes accompanying the project Atlas von Athen (Atlas of Athens), “these traces of ancient life disappear year after year as a result of the reckless exploitation of the Western Hills of Athens that are being relentlessly looted and blasted, and crumble to piles of ruins.”
 
Selected bibliography:

Curtius and Kaupert 1878; Korres 2008.

Atlas von Athen

(Source: Curtius and Kaupert 1878, Bl. VI)