Hirros
Hirros a river of Asiatic, Sarmatia, with a town of the same name, 136 M. P. from Heracleum, and 67 M. P. from Sindica (Plin. Nat. 6.5). It is, probably, the same place as the HIEROS PORTUS of the Periplus, which Rennell (Compar. Geog. vol. ii. p. 325) identifies with the deep inlet or small gulf of Sunjuk-kala in the Russian chart.
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.