The
Antonine Itinerary places it on the road from
Ancyra to
Caesarea, between Parnassos and Asiana, 24 Roman miles from Parnassus and 32 from Asiana.
Ptolemy's
Geography places it at 68°20' 38°40 (in his degrees) in the Prefecture of Murimene (). The site of Nyssa has been identified as near the modern town of
Harmandalı,
Ortaköy district,
Aksaray province, in south-central
Turkey. The archaeological site consists of two
tells, named Büyükkale (Great Castle) and Küçükkale (Little Castle), located 1 and 2 km to the north of Harmandalı with the town located 1 km north Another proposed location associates it with the modern city of
Nevşehir, but modern scholarship has cast serious doubt on this. William Smith's
Dictionary of Greek and Roman Geography placed the town at a village, not otherwise mentioned, called Nirse or Nissa and said that it was anciently in a district called
Muriane, not far from the river
Halys. == Ecclesiastical history ==