Note 3171 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
If Gades was not the same as Tartessus (probably the Tarshish of Scripture), its exact locality is a question in dispute. Most ancient writers place it at the mouth of the river Bætis, while others identify it, and perhaps with more probability, with the city of Carteia, on Mount Calpe, the Rock of Gibraltar. The whole country west of Gibraltar was called Tartessis. See B. iii. c. 3.