Petrified Forest National Park

A 1,300-year-old ancient village has been found in Arizona's Petrified Forest National Park.
The village was found a year after archeologist found a similar site close by. Both villages are comprised of similar slab-lined pit-houses. The artifacts found at the site were primarily stone tools, including spear points, scrapers and knives made out of petrified wood, shells and small early ceramics.
The first site was suspected to be a trade house of some kind.
"There are not a lot of national parks that have the opportunity to get bigger like this to protect sites and produce future research," Reitze told ABC News. "A lot of archaeology happens in response to development. What makes this unique is new sites are discovered, research [is] being done and all these sites are being protected, all at once."
The origin of the people who lived there has not been specified, but the site is split between Navajo and Apache counties.