Ancient seas left an expanse of rolling gypsum dunes known as White Sands in New Mexico, and within this surreal landscape lies evidence that humans have roamed the Americas for at least 20,000 years.

ALBUQUERQUE, N.M. (AP) — Three people died in flooding Tuesday as New Mexico’s Rio Ruidoso’s banks swelled amid the summer rainy season. The village of Ruidoso and other parts of New Mexico have ...