[spycatcher]

ping

[RightWhale]

mud volcano

Your kind of phenomenon. Inscriptions, too. Just like a Lovecraft story.

[sawsalimb]

Thanks for the post and thanks for the ping-this is amazing stuff.

[blam]

"If that dating estimate proves accurate, it would mean that an ancient civilization had designed and erected these vast stone structures in the Americas only 500 years after human settlements first became organized in cities and states.

I high lighted what I thought was the error in the above statement.

[Victoria Delsoul]

Thanks for the very interesting article.

[gnarledmaw]

thanks for the flag!