This volume is the final report on the 1967-1968 excavations at Kalleh Nisar in Pusht-i Kuh Luristan, Iran, by Ghent University and the Royal Museums of Art and History, Brussels. A large number of tombs, constructed with stone boulders, and remains of 2 buildings were discovered. One of these buildings is of Chalcolithic date. Individual and collective tombs were constructed at Kalleh Nisar throughout the 3rd millennium. Corridor-shaped tombs of up to 13m in length were designed as collective tombs and were used by several generations. Some were still re-used in the second millennium. The burial goods include plain and painted pottery, metal weapons and utensils, seals and jewellery. The finds cover the whole third and the first half of the second millennium. Bani Surmah is located in sub-region I of the Pusht-i Kuh, which is the closest to Mesopotamia. This explains the imports and influence of Mesopotamia in this part of Luristan. Metal analysis has nevertheless indicated the existence of a local metal production. The way of life and subsistence of past population groups in Pusht-i Kuh are considered.All the finds are illustrated in line drawings, the tombs and most objects also in photo.