A recreational outing at the Imperial County Sand Dunes turned tragic Monday morning when a vehicle rollover claimed the life of an 81-year-old Arizona man.

Winds blowing over a dune can move grains of sand in three main ways. What path these grains take depends on their size, although the exact size in each category can change from site to site. Think of ...

March 4 (Reuters) - They are among the wonders of our deserts: star dunes, the vaguely pyramid-shaped sand formations up to about 1,000 feet (300 meters) tall with arms stretching out from a central ...