A recent study of the Quranwala Zone (QZ) of the north-west sub-Himalayas, India, presents evidence for anthropic activity during the Pliocene that includes a number of stone tools found in association with fossil animal bones with cut marks. Based on the date of the Pliocene rock outcrop, the tools and bones are suggested to date from 2.6 Ma (Gaillard et al. 2016). There is, however, a question mark over the context of these tools within an outcrop of Pliocene rocks and, hence, over the date of these tools and the fossil bones. The trench from which they were excavated at Masol 2 (Gaillard et al.2016: fig. 3) lies in a depression at the bottom of a slope; the description provided in section 2 of the paper by Gaillard et al. (2016) suggests that the stone tools may not have been in situ within the Pliocene levels, but had accumulated there and were mixed with the fragments of fossil bone due to geological processes. Moreover, many of the stone tools, such as the ‘simple choppers’ found in association with the fossil animal bones (Gaillard et al.2016: figs 6, 8, 9), are usually found on much more recent sites and are therefore unlikely to date from 2.6 Ma.

In 1960, Robert Braidwood discovered, by chance, an Acheulean biface at Gakia, Kermanshah Province, in the Zagros Mountains of western Iran (Braidwood 1960). Since then, only around ten Lower Palaeolithic sites have been identified on the Iranian Plateau, most of which are open-air sites (see Biglari & Shidrang 2006). Despite growing interest in the Palaeolithic of Iran over the past decade, studies generally continue to focus on particular sites and are largely concerned with the technology and typology of raw materials. A major problem for studies of the Lower Palaeolithic, in particular, is the rarity of cave sites, making it very difficult to study the behaviour of the early hominids through excavation. This paper reports the discovery of an Acheulean biface during a survey of the Deh Luran Plain to the south of the plateau, adding to the picture of human dispersal during the Pleistocene.

The Pleistocene archaeological record of South Asia is important for questions relating to the origin and evolution of Palaeolithic cultures, continuity or change in lithic technologies, and the dispersals of humans across Asia. With these issues in mind, the research project presented here has set out to investigate the basin of the Wainganga River of the Deccan Plateau, southern India.