The book emphasise on the prehistoric Archaeology of Jonk River: a major tributary of the upper Mahanadi in the upland of Western Odisha and Eastern Chhattisgarh in central Eastern India. The stone age man life style and adaptation pattern into the local quaternary landscapes are assess by analyzing the different lithic assemblages, sedimentary contexts, settlement pattern, flora, fauna, geology, and geomorphology of the area. Prehistoric sites discovered in the Jonk River belongs to Acheulian, middle Palaeolithic microlithic periods are discussed in details. The book also discuss about the lithic technology paleo-environemnt, landscape, social and cognitive behaviours of the prehistoric populations of the river basin.