The present book aims to study the use of lithic raw materials on the coast of the San Matias gulf (Rio Negro, Argentina) during the middle and late Holocene. The understanding of this aspect of human group technology is of fundamental importance as the main archaeological materials recovered at the surface sites of the study area are lithic artefacts made from different types of rock. Thus, understanding how these were selected, reduced and finally discarded will contribute to the understanding of the way of life of the hunter-gatherer groups that inhabited the area during this period. El...