Mastaura was situated in the north of ancient Caria, at the foot of Mount Messogis, on the small river Chrysaoras, between Tralles and Tripolis. Some sources speak of the town as originally belonging to Lydia, a kingdom into which Croesus (560-546 BC) briefly incorporated Caria.
Pliny the Elder mentions the town as dependent on Ephesus as its provincial capital and thus as belonging in his time (1st century AD) to the Roman province of Asia. The geographer Strabo mentions the town as being in the valley of the Maeander River.
Its site is located near Mastavra in Asian Turkey. On 16 October 1836, William Hamilton visited the ruins, then overgrown with ilex trees, brush and brambles.
The partially preserved theatre of Mastaura, whose cavea is now occupied by an olive grove, awaits excavation.
Mastaura had the privilege of having a mint and some of its coins are extant.