Grand Staircase-Escalante National Monument contains some of the country’s most remote and rugged lands, whose beauty comes from geologic artistry. Over many millions of years, rock layers built ...

The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

A scary scene of biblical-like proportions unfolded in the Grand Canyon when flash flooding at a popular waterfall left ...

Hikers were stranded in the Grand Canyon because of flash flooding, weather officials said Tuesday, but everyone eventually ...

Residents were encouraged to head to higher areas to avoid washed out creeks and footbridges during the flash flood warning.