Casa Grande Ruins National Monument located in Arizona preserves Hohokam Culture ... The Gila River’s 650 miles have worn a waterway through the ancient bedrock. The Gila River was the lifeline ...

At first it seemed that Mesa Verde might suffer the same fate as smaller ancient ... Arizona, Colorado, New Mexico and Utah meet. These sites had been plundered by "pothunters" who vandalized the ...

Hovenweep National Monument is an easily overlooked spot that's worth the visit in Southeast Utah. Located south of Arches National Park on the way to Monument Valley, this is a great place to see ...