Original offering found at Teotihuacan pyramid

MEXICO CITY (AP) ? Archaeologists say they have dug to the very core of Mexico’s tallest pyramid and found the original ceremonial offering placed on the site before construction began.

The offering includes a green stone mask so delicately carved and detailed that archaeologists believe it may have been a portrait. Archaeologists also found 11 ceremonial clay pots dedicated to the rain god Tlaloc.

The National Institute of Anthropology and History says the offering was laid on a sort of rubble base where the Sun pyramid in Teotihuacan was erected in about A.D. 50.

Experts followed an old tunnel dug through the pyramid by researchers in the 1930s that narrowly missed the center, and then dug small extensions and exploratory shafts off it.