Thanks for the info. I agree with you and I've been discussing this matter in my book.
Plato does not describe specifically about "The Pillars of Heracles" so that debate has raged over centuries. Plato does not call them "pillars" but refers to them as stêlas (στήλας, plural) and stêle (στήλη, singular) which is the Greek word for an upright stone slab or a pillar bearing an inscription or design and serving as a monument, marker, or the like.
Classical writers frequently refer to the pillars without being in anyway specific regarding their location. The poet Pindar in the Third Nemean Ode would appear to have treated the pillars as a metaphor for the limit of established Greek geographical knowledge, a boundary that was never static. In earlier times, the Pillars were identified with the Strait of Sicily, but from the time of Erastosthenes (ca 250 BC) the term was used to refer to the Strait of Gibraltar.
And some more discussions in my book.
So, what are your opinions?
Thanks again for the comments.