Casa Grande Ruins National Monument located in Arizona preserves Hohokam Culture and ruins of the largest prehistoric structures ever built in North America. It is hard to believe that the Great ...

The Casa Grande Ruins National Monument picnic area will be closed through April 30 due to the growth of an invasive weed called stinknet, according to a news release. Stinknet is originally from ...

Coolidge, Arizona, U.S.A. - February 28, 2018: Casa Grande Ruins National Monument. Built by ... [+] ancient Sonoran Desert people circa 650 A.D. to 1450 A.D. The large house had Summer solstice ...