By comparing the cropmarks on a series of aerial photographs from various periods the participants the first secret meetings aerial archeology reached to define the final protocol, that was:
Kwa kulinganisha cropmarks juu ya mfululizo wa picha ya angani kutoka vipindi mbalimbali Washiriki kwanza siri mikutano Imefikia archaeologists angani kufafanua itifaki ya mwisho, Hiyo ilikuwa: