The sanctuary is situated southeastern of Ancient Mantineia at the
boundaries of "Melia", in the modern village of Nestane. It was identified by
the French Archaeological School at Athens, which had also excavated ancient Mantineia.
It was located again and then excavated by the director of the Ephorate Dr. Th.
Spyropoulos during the last decade.
The excavations of Th. Spyropoulos in 1985-1995 revealed remains of
the Archaic temple and important objects
of the same period (clay akroterion of lakonic type bearing Gorgoneion, pottery
of Archaic and Classical date, idols, etc.). The excavations also uncovered later
building and tombs preserving ancient liberative inscriptions dedicated to Hippios