(AP)—Crews renovating a public square in the U.S. Virgin Islands have discovered a 1,500-year-old landfill stuffed with shells, bones and pottery fragments.

Public Works Commissioner Darryl Smalls says a team of specialized will arrive soon to further excavate the pre-Columbian site. It is located in the capital of Charlotte Amalie on St. Thomas.

Smalls said Wednesday that the landfill, known as a midden, features hundreds of shells and bones from fish, birds, rodents and marine mammals. He said some of the pottery fragments feature stylized eyes.

Smalls said local historians who analyzed the midden have determined it is among the most important sites of its age on St. Thomas.