# Yes: Diodorus's Atlantians of western Libya, by the ocean and Lake Tritonis, are a North African Atlantis

> Still possible: Diodorus describes the Atlantians as the most civilised people of western Libya, living by the ocean near Mount Atlas with great cities…

Source: https://mysteriesdept.com/mysteries/eye-of-the-sahara/answers/ANS0DCP9Q7XFSV7/yes-diodoruss-atlantians-of-western-libya-by-the-ocean-and  
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[Questions](https://mysteriesdept.com/questions)[Eye of the Sahara and Atlantis](https://mysteriesdept.com/mysteries/eye-of-the-sahara)[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)Answer

Answer · Eye of the Sahara and Atlantis

# Yes: Diodorus's Atlantians of western Libya, by the ocean and Lake Tritonis, are a North African Atlantis

Diodorus describes the Atlantians as the most civilised people of western Libya, living by the ocean near Mount Atlas with great cities, beside a marsh, Tritonis, that vanished in an earthquake; this is an ancient memory of an Atlantis in North Africa.

**Still possible** Answers **1** question0

## Where it stands

**Still possible** One piece of evidence for, two against. It needs two reviews to be accepted.

## What it predicts

- Diodorus's account derives from an older, independent tradition rather than from literary invention.
- Lake Tritonis can be located in north-west Africa near the Atlas.

## What would rule it out

- Diodorus's source is shown to be a literary romance.
- Ancient writers agree that Tritonis lay far from the Atlas, in Tunisia or Cyrenaica.

## Evidence 1 for · 2 against

[Diodorus's Atlantians were a civilised people of western Libya by the ocean, near a marsh lost in an earthquake](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPB8VD62Z9/diodoruss-atlantians-were-a-civilised-people-of-western)

Suggestive

FOR

[Diodorus took the Atlantians from a mythical romance written two centuries after Plato, and does not link them to…](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPB95GFA3Y/diodorus-took-the-atlantians-from-a-mythical-romance-written)

Supported

AGAINST

[The ancients disagreed where Lake Tritonis was, and most put it in Tunisia or Libya, far from Mauritania](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPB9NDCM8T/the-ancients-disagreed-where-lake-tritonis-was-and-most-put)

Supported

AGAINST

## The questions it answers

[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)

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)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). Yes: Diodorus's Atlantians of western Libya, by the ocean and Lake Tritonis, are a North African Atlantis [Answer ANS0DCP9Q7XFSV7]. https://mysteriesdept.com/r/ANS0DCP9Q7XFSV7
```

Key

**ANS** 0DCP9Q7XFSV7

Kind

Answer · hypothesis

Proposed

[Session 2](https://mysteriesdept.com/mysteries/eye-of-the-sahara/sessions/SES0DCPG24DVVS2/session-2-atlantis-in-the-ancient-sources-the-green-sahara) · 28 Oct 2026

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