"The Eye of the Sahara", also known as the "Richtat Structure", is located in Mauritania, Africa.

Some believe it was the location of "Atlantis".
(2 Pictures below)

Been there, it struck me that the structure was modest in size to have been the center of Atlantis.

That's awesome, I never have been. In my mind it certainly appears to look like "Atlantis" --- at least to the naked eye. Not to say that means that it absolutely is in my mind if that makes sense.

In diameter, are you speaking?

Hypothetically, if The Flood occurred as described Plato described, perhaps it shaped the land in a way as we say today?

What do you think?