[Fred Nerks]

and, anxious to reach Egypt, made sail in that direction, but were carried out of their course by a gale of wind from the east. The storm not abating, they were driven past the Pillars of Hercules, and at last, by some special guiding providence, reached Tartessus...

...Weasels also are found in the Silphium region, much like the Tartessian...

http://www.salon.com/health/feature/1999/07/01/fennel/

...the amazing silphion plant, a form of giant fennel, which grew in a limited band along the Libyan coast...

methinks there's a geographic clue in there somewhere.

[Fred Nerks]

http://www.greatdreams.com/atlnorth.jpg

If an East Wind blew them through the Pillars of Hercules, there’s no way they could end up in Spain IMO.