In November-December 1998 and in February-March 1999, two salvage excavations were carried out at Site F3 at Khirbat Umm el-'Umdan, now within the Ha-Shevatim neighborhood in Modi'in (Buchman compound [south]; Permit Nos. A-2966, A-3020; map ref. 20075-100/64375-400; Golani and Zbenovich 2001). The excavation, on behalf of the Israel Antiquities Authority, was directed by A. Golani and V. Zbenovich. A large assemblage of Pre-Pottery Neolithic A flint items was collected.