NEW ORLEANS (AP) — An archaeological project arising out of Hurricane Katrina’s floods has turned up bits of pottery fired about 1,300 years before the first French colonists slogged into south Louisiana swamps.

The project also has turned up artifacts from later Native Americans, Spanish and American fortifications, as well as a hotel and amusement park near the mouth of Bayou St. John, once an important route from Lake Pontchartrain to New Orleans.