16 aprile 2009
Even this day of the survey involved the central part of Area 1, the walls between US 19 (tower),US 9 (defensive wall), US 6, 33, 34 and 42 (Environment 1, 2 and 3).
It was partially removed the layer of red-brown earth that fills the cutting US 59, the US 58. This cut is visible throughout the length of the wall US 9 between the tower and the Environment 1 to about 25 cm from the wall itself. These could be cut for the establishment or restructuring of the wall US 9.
It was also totally dug the layer US 39 within the tower collapse. Below this level identified a number of layers, one layer of soil, US 64, cut a small hole in the mast (cut US 62, fill US 63), the remains of the foundations of the tower (US 65) composed of stones mixed mortar and the rock, US 66.