Arkansas City

Brian Grimmett / KMUW

The Department of Homeland Security is now taking public comment on a plan to release biological and chemical materials at the former Chilocco Indian School near Arkansas City.

Wichita State University professor Don Blakeslee says a recent archaeological dig in south-central Kansas has yielded evidence of a Native American settlement dating back more than 400 years.

Blakeslee is an archaeologist and anthropology professor at Wichita State who recently led a five-day dig in Arkansas City.

He says researchers found iron and lead balls that are the same type of ammunition shot from cannons and muskets by Spanish conquistadors who explored the Great Plains in the 16th and 17th centuries.