Река Дрина (Дринопољска) и град Дринопољ (данашњи Аргирокастрон)
Travels in Epirus, Albania, Macedonia, and Thessaly;(1820)F. Pouqueville
When, however, I had advanced a mile from Tebelen, near some springs issuing from the roots of Mount Argenik, my attention was called to certain terraces or banks and ditches, which, by their distribution, seemed to indicate the encampment of Flamininus. Two miles farther on, I came to the junction of the Celydnus,
or the river of Drynopolis with the Aous.
... At the end of three hours' delightful ride, we entered what is properly
the valley of the Argyrians, now of Drynopolis; and to have time to make my remarks, ..... While at breakfast, I opened my project of going to Argyro-Castro, a project which it required my utmost power to engage my conductors to adopt...
Argyro-Castro, which I found distracted with sanguinary and endless contentions, is situated on three spurs from the mountains on the west, ending abruptly over the valley of the Celydnus on the east.
http://kroraina.com/knigi/en/fp/fp_7.html
http://kroraina.com/knigi/en/fp/index.html
(kojeg sam čitao dok sam čekao red u pošti 
). Tekst je zanimljiv jer pored predočavanja otkrića starije tvrđave iz doba Justinijana ( koja je "zapustela krajem VI i početkom VII veka kada je nastupio prekid života na ovom prostoru " ) govori i o otkriću najverovatnijeg graničnog utvrđenja Časlavljeve Srbije.
