The Spaniards were amazed by the size of Etzanoa. They counted 2,000 houses that could hold 10 people each. They said it would take two or three days to walk through it all. Etzanoa? Unless you're up on early North American history and the Spanish conquest, you may not have heard of the lost city of Etzanoa, which was believed to be the second-largest Native American settlement in what is now the United States. Lost city? How did that happen? A teenager found a small Spanish cannonball near Arkansas City, Kansas, that Wichita State University archeologist Donald Blakeslee says is proof this is indeed the location of the legendary lost city of Etzanoa. We always knew we once had a whole bunch of Indians living around here, because we had found way too many artifacts to think otherwise. But we had no idea until Dr. Blakeslee came along about how big it was. By "a bunch of Indians," Arkansas City council member Jay Warren means around 20,000 Native Americans of the Wichita nation whose