The trade networks that covered the broad expanse of north-western Arabia and the Negev Desert have long been known from historical sources, but in recent years, archaeological investigations in the region have begun to reshape our perception of what ancient trade looked like in this arid region, In particular, the modern application of advanced techniques, together with a greater focus on the numerous smaller sites that dotted these routes, have led to a far more nuanced understanding of the dynamics of trade in this borderland region. This volume focuses in particular on survey work undertaken at the site of Khirbet al-Khalde, ancient Praesidium, a fortlet and possible caravanserai in southern Jordan, located along the Via Nova Traiana. The survey, which included surface collection, mapping, and assessment of damage done to the site over time has yielded new insights into the character and chronology of the site. The chapters gathered here include a comprehensive report of this survey project, together with a reassessment of the find groups, giving new insights into the chronology and dynamics both of this small but important site, and the role it played along a major route connecting the Red Sea with the Near East.