Photo1 View, Toward the east (IMAGE) CNRS Caption View, toward the east, of the thickness of the Qal'at al-Rahiyya northern wall. Credit M.-O. Rousset Marges arides mission. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.