The Richat Structure, also known as the “Eye of the Sahara” or the “Eye of Africa”, is a massive, circular geological formation in the Sahara Desert of Mauritania.

The diameter of the series of concentric rings measure to about 40 kilometers (25 miles) wide and can be visible from space. Astronauts in orbit frequently use the Richat Structure as a landmark for navigational aid.

Geological Origin

There are a number of theories surrounding the Richat Structure’s origin. Some claim it was created due to meteorite impact or from volcanic activity. Others suggest it was once the lost city of Atlantis, adding to its mystery.

Scientists now believe it is a highly eroded geologic dome formed by uplifted sedimentary rock and shaped by wind and water erosion over millions of years. The rock layers date back to the Proterozoic era, over 2 billion years old in parts.

Despite its many origin theories, there is no argument that the Richat Structure is considered one of the most extraordinary landmarks on Earth. It has captivated the curiosity of geologists, scientists, and adventurers willing to make the trek for a firsthand experience of this stunning natural wonder.