Muge 150 The 150th Anniversary of the Discovery of Mesolithic Shellmiddens is organized into two volumes. This first volume focuses on the Mesolithic structures of the Muge and Sado Valleys, with a total of 27 chapters. These contributions cover a wide range of archaeological and anthropological themes, including a general synthesis on the current state of specific topics including the use of isotopes in diet determination and migration; settlement and subsistence; technology; plant use; burial practices; social complexity; and research history.