São Tomé and Príncipe are two islands in the Gulf of Guinea, off the coast of the West African state of Gabon. The website^(a) dedicated to the work of Livio Stecchini unequivocally identifies São Tomé as the island of Atlantis referred to by Pliny the Elder (VI 36, 199).

^(a) http://www.metrum.org/mapping/atlantis.htm