Anasazi built and occupied Betatakin and Keet Seel, Arizona's largest cliff dwellings, from AD 1250-1300. The Navajo now reside where these ruins are located.

Learn about the remarkable human story of the Estancia Basin of New Mexico and the tragic drama that unfolded in the seventeenth century, when the expanding empire of Spain reached these peaceful Indian towns.

The worlds largest gypsum dune field, the 275-square-mile dunes of White Sands National Monument are a geologic oddity more than 250 million years in the making.