The Center for Obsidian and Lithic Studies (COLS), Meiji University, held the annual meeting of the fiscal year 2013, in 15 and 16 March 2014 at Global Hall of the Global Front Building in Surugadai campus. The aim of this meeting was to present preliminary research results of the inter-disciplinary project “Historical variations in interactions between humans and natural resources: towards the construction of a prehistoric anthropography” promoted by COLS. Discussions were focused on relations between prehistoric human occupations and palaeoenvironmental changes during the Late Pleistocene and Early Holocene at Hiroppara wetland, located obsidian source area, Nagawa Town, Nagano Prefecture. In particular, microfossil analyses from the Hiroppara boring cores have provided main themes in correlation with palaeoenvironmental reconstruction and the archaeological evidence. Additionally a sequence of radiocarbon dates from sediment cores of the wetland was also reported, which provides a crucial temporal correspondence for matching different chronologies between archaeological cultures and palaeoclimatic changes around obsidian sources in Central Highlands of the Japanese islands.