Diagon
Διάγων
Diagon (Διάγων), a river separating Arcadia and Elis, and falling into the Alpheius on its left bank, nearly opposite the mouth of the Erymanthus. (Paus. 6.21.4.) It is conjectured by Leake to be the same as the Dalion (Δαλίων) of Strabo (viii. p.344), who mentions it along with the Acheron. (Leake, Morea, vol. ii. p. 89.)
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.