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![Olmec heartland](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Olmec_Heartland_Overview_4.svg/425px-Olmec_Heartland_Overview_4.svg.png)
The Olmec heartland. The yellow dots represent ancient habitation sites, while the red dots represent isolated artifact finds unassociated with any ancient town or village.
Credit: Madman2001 |