Vacua
Οὐακούα
Vacua (Οὐακούα, Strab. iii. p.153; Οὔακος, Ptol. 2.5.4), a river in Lusitania, which entered the Atlantic ocean between the Durius and Munda, in the neighbourhood of Talabrica. Pliny (4.21. s. 35) calls it Vacca. The present Vouga.
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.