Altus or Altos ( ; grc, Άλτός) was a fortress town in

Mygdonia Mygdonia (; el, Μυγδονία / Μygdonia) was an ancient territory, part of Ancient Thrace, later conquered by Macedon, which comprised the plains around Therma (Thessalonica) together with the valleys of Klisali and Besikia, including the ...

near

Therma Therma or Thermē ( grc, Θέρμα, ) was a Greek city founded by Eretrians or Corinthians in late 7th century BC in ancient Mygdonia (Europe), Mygdonia (which was later incorporated into Macedon), situated at the northeastern extremity of a great ...

(later

Thessalonica Thessaloniki (; el, Θεσσαλονίκη, , also known as Thessalonica (), Saloniki, or Salonica (), is the second-largest city in Greece, with over one million inhabitants in its metropolitan area, and the capital of the geographic region of ...

). The town is mentioned by

Stephanus of Byzantium Stephanus or Stephan of Byzantium ( la, Stephanus Byzantinus; grc-gre, Στέφανος Βυζάντιος, ''Stéphanos Byzántios''; centuryAD), was a Byzantine grammarian and the author of an important geographical dictionary entitled ''Ethni ...

and Theagenes of Macedon. Its site is unlocated.

References

*John Cramer, A Geographic and Historical Description of Ancient Greece (Clarendon Press, 1828), p. 238. Populated places in ancient Macedonia Former populated places in Greece Geography of ancient Mygdonia Lost ancient cities and towns {{AncientMygdonia-geo-stub