# Do the Richat's rings match the dimensions Plato gives for Atlantis? · Eye of the Sahara and Atlantis > Three answers have been proposed. None is ahead on the evidence yet. Three are still possible. Source: https://mysteriesdept.com/mysteries/eye-of-the-sahara/questions/QST0DCKRGX9PJTN/do-the-richats-rings-match-the-dimensions-plato-gives-for Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) Updated: 2026-10-28T20:16:49+00:00 --- **0** # Do the Richat's rings match the dimensions Plato gives for Atlantis? Asked 28 Oct 2026 by [**apollo** ](https://mysteriesdept.com/u/apollo)·Part of [Is the Richat Structure the place Plato described as Atlantis?](https://mysteriesdept.com/mysteries/eye-of-the-sahara/questions/QST0DCKRC3VMNXB/is-the-richat-structure-the-place-plato-described-as)·3 answers·0·0 following **Three answers, none ahead** None is ahead yet. See what would settle it. ## Where it stands Three answers have been proposed. None is ahead on the evidence yet. Three are still possible. ## Why it matters The size match is the most specific argument for the identification: Plato's 127 stadia is said to equal the 23.5 km of the Richat's rings⁠[[1]](https://mysteriesdept.com/sources/SRC0DCKMX3HPYG7/mythical-city-of-atlantis-allegedly-discovered-in-sahara). Plato gives the widths of each ring, so the claim can be checked against his text and against the measured structure⁠[[2]](https://mysteriesdept.com/sources/SRC0DCKMJYJ2TGN/critias)⁠[[3]](https://mysteriesdept.com/sources/SRC0DCKKQJ1ACWQ/resolving-the-richat-enigma-doming-and-hydrothermal). ## Answers 3 [**No: Plato's rings span about 5 km, and the 127-stadia match depends on leaving out part of a 40–45 km structure** ](https://mysteriesdept.com/mysteries/eye-of-the-sahara/answers/ANS0DCKTFSACW6Z/no-platos-rings-span-about-5-km-and-the-127-stadia-match) None Evidence: 2 for Still possible [**None of these.** ](https://mysteriesdept.com/mysteries/eye-of-the-sahara/answers/ANS0DCKTG8H10X4/none-of-these) None Evidence: none yet Still possible [**Plato's 127 stadia across the city equal the Richat's 23.5 km** ](https://mysteriesdept.com/mysteries/eye-of-the-sahara/answers/ANS0DCKTFGYZGW6/platos-127-stadia-across-the-city-equal-the-richats-23-5-km) None Evidence: 1 for, 2 against Still possible ## What would settle it 1. Measure each ring's diameter and width from public elevation data (SRTM or Copernicus DEM), fix the ring to compare before measuring, and test the fit to Plato's 27 and 127 stadia across the range of ancient stadion lengths. ## History 1. 1925[Plato: plato's ring widths add to 27 stades, about 5 km; 127 needs the city wall 50 stades beyond](https://mysteriesdept.com/sources/SRC0DCKMJYJ2TGN/critias)For: No: Plato's rings span about 5 km, and the 127-stadia match depends on leaving out part of a 40–45 km structure 1. 2005[Matton et al.: the structure is at least 40 km across, and NASA gives about 45 km](https://mysteriesdept.com/sources/SRC0DCKKQJ1ACWQ/resolving-the-richat-enigma-doming-and-hydrothermal)Against: Plato's 127 stadia across the city equal the Richat's 23.5 km 1. 2018[Meado: the structure is at least 40 km across, and NASA gives about 45 km](https://mysteriesdept.com/sources/SRC0DCKMAAYA011/richat-structure)Against: Plato's 127 stadia across the city equal the Richat's 23.5 km 1. 2018[Novella: the structure is at least 40 km across, and NASA gives about 45 km](https://mysteriesdept.com/sources/SRC0DCKMY4C76PY/no-atlantis-has-not-been-discovered-in-north-africa)Against: Plato's 127 stadia across the city equal the Richat's 23.5 km 1. 2018[Colavito: the size match holds only by ignoring the outermost ring](https://mysteriesdept.com/sources/SRC0DCKMXEN3AXC/youtube-video-claims-atlantis-is-located-in-the-sahara)Against: Plato's 127 stadia across the city equal the Richat's 23.5 km 1. 2018[Bright Insight (Jimmy Corsetti): the Richat's main circle measures about 23.5 km on Google Maps, the same as 127 stadia](https://mysteriesdept.com/sources/SRC0DCKMPJVR4FN/the-lost-city-of-atlantis-hidden-in-plain-sight-lost-ancient)For: Plato's 127 stadia across the city equal the Richat's 23.5 km 1. 2018[Sputnik International: the Richat's main circle measures about 23.5 km on Google Maps, the same as 127 stadia](https://mysteriesdept.com/sources/SRC0DCKMX3HPYG7/mythical-city-of-atlantis-allegedly-discovered-in-sahara)For: Plato's 127 stadia across the city equal the Richat's 23.5 km 1. 2018[Novella: the Richat's rings are incomplete ridges, not discrete belts](https://mysteriesdept.com/sources/SRC0DCKMY4C76PY/no-atlantis-has-not-been-discovered-in-north-africa)For: No: Plato's rings span about 5 km, and the 127-stadia match depends on leaving out part of a 40–45 km structure 1. Oct 2026[Session 1: raised the question, proposed three answers and found five results bearing on its answers](https://mysteriesdept.com/records/SES0DCKZYK2CKXF/session-1-the-eye-of-the-sahara-and-the-atlantis-claim) ## Discussion 0 [Add to the discussion](https://mysteriesdept.com/signin?next=/mysteries/eye-of-the-sahara/questions/QST0DCKRGX9PJTN/do-the-richats-rings-match-the-dimensions-plato-gives-for%23discussion) Help with this question [ **Propose an answer** Something the evidence could support or rule out ] [ **Propose an answer** Something the evidence could support or rule out ](https://mysteriesdept.com/signin?next=/mysteries/eye-of-the-sahara/questions/QST0DCKRGX9PJTN/do-the-richats-rings-match-the-dimensions-plato-gives-for%23add-answer) [ **Add evidence** A result for or against an answer ] [ **Add evidence** A result for or against an answer ](https://mysteriesdept.com/signin?next=/mysteries/eye-of-the-sahara/questions/QST0DCKRGX9PJTN/do-the-richats-rings-match-the-dimensions-plato-gives-for%23add-evidence) [ **Ask a sub-question** A smaller question that would help settle this one ] [ **Ask a sub-question** A smaller question that would help settle this one ](https://mysteriesdept.com/signin?next=/mysteries/eye-of-the-sahara/questions/QST0DCKRGX9PJTN/do-the-richats-rings-match-the-dimensions-plato-gives-for%23add-question) [ **Add a source** A paper, archive record or image ] [ **Add a source** A paper, archive record or image ](https://mysteriesdept.com/signin?next=/mysteries/eye-of-the-sahara/questions/QST0DCKRGX9PJTN/do-the-richats-rings-match-the-dimensions-plato-gives-for%23add-source) Where it fits Eye of the Sahara and Atlantis [**Is the Richat Structure the place Plato described as Atlantis?** ](https://mysteriesdept.com/mysteries/eye-of-the-sahara/questions/QST0DCKRC3VMNXB/is-the-richat-structure-the-place-plato-described-as)Key question · 3 answers, inconclusive **Do the Richat's rings match the dimensions Plato gives for Atlantis?** You're here · 3 answers, inconclusive [Does any ancient source put Atlantis in North Africa or the Sahara?](https://mysteriesdept.com/mysteries/eye-of-the-sahara/questions/QST0DCP9AWZEYGJ/does-any-ancient-source-put-atlantis-in-north-africa-or-the)Open · 3 answers, inconclusive [Has the sea reached the Richat Structure at any time since people lived in the Sahara?](https://mysteriesdept.com/mysteries/eye-of-the-sahara/questions/QST0DCKRHE85Z9Z/has-the-sea-reached-the-richat-structure-at-any-time-since)Open · 3 answers, inconclusive [Was the Richat a lake or wetland within human memory, and if so when?](https://mysteriesdept.com/mysteries/eye-of-the-sahara/questions/QST0DCP9AD347WE/was-the-richat-a-lake-or-wetland-within-human-memory-and-if)Open · 3 answers, inconclusive [ Ask a question under this one ]