Archaeological evidence suggests that the earliest people were related to the builders of the Spiro Mounds.

An extremely elaborate pendant from Spiro Mounds is shaped as two hands connected by a common beaded bracelet.

Small shell cameos, under two inches wide, were found at Spiro Mounds.

Spiro Mounds is an archaeological site run by the Oklahoma Historical Society and open to the public.

One is found in southeast Missouri and the other in Spiro Mounds in Oklahoma.

The town is notable for its proximity to the Spiro Mounds, one of Oklahoma's most important archaeological sites.

In the morning, we drove a short way north to the Spiro Mounds.

He pioneered work on the Spiro Mounds archaeological site in eastern Oklahoma.

Spiro Mounds' ceremonial objects are among the finest examples of pre-Columbian art in North America.

Spiro Mounds by University of Oklahoma.