# Yes: around Plato's date of about 9600 BC, rivers filled the Richat's rings with water

> Still possible: Around 11,600 years ago, Plato's date for Atlantis, the Sahara was green and rivers ran into the Richat and filled its ring depressions…

Source: https://mysteriesdept.com/mysteries/eye-of-the-sahara/answers/ANS0DCP9H3EWGDD/yes-around-platos-date-of-about-9600-bc-rivers-filled-the  
Publisher: Mysteries Department  
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[Questions](https://mysteriesdept.com/questions)[Eye of the Sahara and Atlantis](https://mysteriesdept.com/mysteries/eye-of-the-sahara)[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)Answer

Answer · Eye of the Sahara and Atlantis

# Yes: around Plato's date of about 9600 BC, rivers filled the Richat's rings with water

Around 11,600 years ago, Plato's date for Atlantis, the Sahara was green and rivers ran into the Richat and filled its ring depressions with water, giving the rings of water that Plato describes.

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

## Where it stands

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

## What it predicts

- Lake or marsh sediments in the ring depressions dated to about 11,600 years ago.
- Wet conditions in western Mauritania at 11,600 years ago, not an arid spell.

## What would rule it out

- The ring deposits of that age are only stream gravels and wind-blown sand.
- Regional records show the western Sahara arid at about 11,600 years ago.

## Evidence 1 for · 4 against

[Plato's date falls inside the African Humid Period, and streams were laying down gravels in the Richat across that span](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPAXJJMHT3/platos-date-falls-inside-the-african-humid-period-and)

Supported

FOR

[One leaf-wax record starts the Green Sahara about 11,000 years ago, after Plato's date](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPAY8WFXSX/one-leaf-wax-record-starts-the-green-sahara-about-11-000)

Suggestive

AGAINST

[Plato's rings were belts of sea joined to the ocean by a channel, not a lake fed by rivers](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPAYMQ0ADF/platos-rings-were-belts-of-sea-joined-to-the-ocean-by-a)

Supported

AGAINST

[Proponents tie the catastrophe to the Younger Dryas, which off Mauritania was a dry break in the humid period](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPAXZ7QN6Q/proponents-tie-the-catastrophe-to-the-younger-dryas-which)

Suggestive

AGAINST

[The outer-ring sediments of 15,000 to 7,730 BP are stream and wind deposits](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCKV6A6X7FG/the-outer-ring-sediments-of-15-000-to-7-730-bp-are-stream)

Supported

AGAINST

[The Sahara has turned green more than 230 times in 8 million years](https://mysteriesdept.com/mysteries/eye-of-the-sahara/evidence/EVD0DCPAZ1K8TFA/the-sahara-has-turned-green-more-than-230-times-in-8-million)

Supported

NEUTRAL

## The questions it answers

[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)

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: around Plato's date of about 9600 BC, rivers filled the Richat's rings with water [Answer ANS0DCP9H3EWGDD]. https://mysteriesdept.com/r/ANS0DCP9H3EWGDD
```

Key

**ANS** 0DCP9H3EWGDD

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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