The sites were previously unknown and came into light after the excavations
that conducted by the director of the Ephorate, Dr. Th. Spyropoulos. During the
metallurgic kilns were revealed at the area of Steno.
They have been dated to prehistoric (1700 B. C.) but also to late Roman period
(400 A. D), on the basis of the archaeological evidence and the results of the
method of archaeomagnetism. The late Roman dating probably indicates that the
kilns were later used in order to remelt the old metal waste. The big kiln and
various other installations for the refinement of metals on the site of "Agiorgitika"
were used for melting and improving copper ores which were extracted from the
area. They are dated to the Early and Middle Helladic period. The
various installations used for metallurgic activities on the sites of "Steno"
and "Agiorgitika" were uncovered during the 1980s and they are still being excavated
by Dr. Th. Spyropoulos.