It was our job to run the length of the Colorado River through the Grand Canyon and search out ... Day seven: halfway through the journey. Clouds gathered on the canyon rim above us and peeled apart ...

After you've admired the Grand Canyon from the hiking trails (or even from the air on a helicopter tour), enjoy a new vantage point on a Colorado River rafting tour. Options range from the family ...

John Wesley Powell A professor of geology at Illinois Wesleyan, John Wesley Powell had more than just a passing interest in the layers upon layers of rocks exposed by the Colorado River.

Toying with Mother Nature isn’t as scary as it sounds in the context of cloud seeding, according to meteorologists and experts focused on the task. The term refers to a process of weather ...