A deeply stratified cave deposit on the Peloponnesian coast of the Argolid in southern Greece. It was excavated by T. W. Jacobson between 1967 and 1979. The lowest levels dated to the period 20 000–8000 bc, the Upper Palaeolithic, and included the remains of wild ass, red deer, and a variety of fish. The upper levels date to the Mesolithic and Neolithic, and it was during the Mesolithic, around 7000 bc, that obsidian from Melos first appears in the sequence, demonstrating long‐distance boat journeys across the Aegean. An abrupt change in subsistence patterns around 6000 bc saw the introduction of domesticated sheep and goat, with, a little later, cultivated barley, and finally pottery.
http://www.showcaves.com/english/gr/caves/Frahthi.html Important cave for archaeological deposits in the Argolid of southern Greece.
T. W. Jacobsen, 1976, 17 000 years of Greek prehistory. Scientific American, 234, 76–87