A shell mound on the shore of Lake Tondano in northern Sulawesi, which is the best-preserved pre-Neolithic midden to be excavated in Indonesia. Dated to c 6500 BC, there are obsidian flake tools and bone points pre-dating the Toalian. Its inhabitants lived on shellfish and hunted the local fauna. Paso provides and important terminus post quem for the small flake and blade industries and Neolithic cultures (after 3000 BC) which later appear in the region.