The site was occupied from around AD 1350 - 1600, and has one temple mound that you can see in the picture above.
Hernando de Soto, the Spanish conquistador, in 1541. Its location and appearance fit with the descriptions of the de Soto chroniclers. Also this copper bell and a glass trade bead were found at the site.
De Soto ordered his Genoese carpenter and shipwright to cut down a cypress tree and use it to build a large cross. This was then erected in front of the High Miko's house on top of the mound. The Spanish and Indians held a solemn procession to the cross where the Spanish priests celebrated mass. According to the Spanish accounts, a big rainstorm broke that night.
When the top of the mound was excavated by archaeologists in the 1960s, they found a large cypress wood post in place in front of the remains of the structure. Radiocarbon assays on the charred wood date it to the 1540s, making a good case that this is the base of the cross.
Also, if you look closely at the upper right corner of the painting above, you will see animal skulls on the roof of the house. The de Soto chroniclers also said that the High Miko's house was adorned with bison skulls. There were no bison in the area and the Indians had traded for them with people to their west. The Spanish never saw any bison, though they ventured as far west as East Texas. They were told all about them, however and were fed bison meat and given bison robes that circulated in trade.