Stemnitsa is a mountain village in the municipal unit of
Trikolonoi,
Arcadia,
Peloponnese,
Greece. It was the seat of the former municipality Trikolonoi. Stemnitsa is considered one of the most beautiful villages in Arcadia, due to its picturesque location and its historical churches and mansions. It is situated at the western edge of the
Mainalo mountains, above the left bank of the river
Lousios, at about 1050 m elevation. Stemnitsa is 6 km southeast of
Dimitsana, 9 km northeast of
Karytaina, 18 km northwest of
Megalopoli and 26 km west of
Tripoli. In 2001 Stemnitsa had a population of 437.
