Kastrion
KASTRION (“Argos Ippatum”) Greece.
In the Acherusian plain of Epeiros, a large limestone hill is fortified with circuit walls of polygonal masonry built in two phases and some 2500 m long. The site dominates the plain and controls the bridge over the Acheron river which may have been navigable from here to its mouth. Ampelius mentions it (Lib. Mem. 8).
BIBLIOGRAPHYN.G.L. Hammond, Epirus (1967) 67f and 540, and Plan 6.
N.G.L. HAMMOND