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 one of the best places in Utah to see both ancient structures ... for historic ruins in the way that Mesa Verde in Colorado or even much of Arizona is, but places ...