Grid bar, broken during the winter. At the end of the 2003 campaign, the team decided to leave three 3 x 3m excavation units in place, in order to have a fixed reference point to faciliate reinstallation of the grid in 2004. The frames that were left on site were lowered all the way down, and their feet anchored in the substratum. When the team returned the following year, none of the frames were in place. Their elements – disconnected, bent and broken – were finally located several dozen metres away. They were likely snagged by a dragnet. (Réf. : NAT04_M275)