Wikipedia
Mastaura (Lycia)
Mastaura was a town in ancient Lycia.
It may have been located at present-day Dereağzı, some 25 km northwest of Myra, which is therefore not to be confused with Dereağzı, Nazilli or Dereağzı, İncirliova.
Dereağzı had a large domed church made of brick, which may have been the cathedral of Mastaura.