An 1869 expedition led by John Wesley Powell sailed out of the Grand Canyon on the Colorado River in the first official exploration of the canyon. At the time of his journey, Powell was on the staff ...

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

Arizona is chock full of fun, historic towns, desert sunsets, and excellent places to eat when you embark on this amazing ...