Calos

Dictionary of Greek and Roman Geography

CALOS(Καλὸς ποταμός), a river of Pontus, the position of which may be placed approximately from the fact of its being 120 stadia west of the river Rhizius, which is Rizahin the Pashalick of Trebizond. There was at its mouth a trading port called Cale Parembole. (Arrian, p. 7.)
[G.L]