Which country has an unusual 40 kilometre (25 mi) geological formation called Richat?
Correct answer: Mauritania

Lionessa
I saw this on the Science Channel. It's quite beautiful.

little b
I've not been to maryhfhhy

Lionessa
Dreams, Use an authoritative source?

Bam310
Player #33717691,
Perhaps it was. There’s still so many mysteries we know little about.

Albert E
Rosie-knees, geologists

UnacknowledgedFrog3
Suzee, thank you, what a gentle person you are. the Lisa lady is mean.

Suzee
Rosie-knees, Geologists!

Dreams
What would they do without Wikipedia.

Sue
Fredrico, i wonder how many people thought it was a ship? Or is named after the ship and not the other way round!

Judy
I've never even heard of this country. 😕