Ever wonder what the deepest lake in Arizona is? Here's what you want to know about the top spot for swimming, boating and ...

Groundwater is life in Arizona. Find out how we’re helping Grand Canyon communities manage their limited water supplies.

Plan a winter trip to the Grand Canyon with our winter guide to the Grand Canyon. Don't let a little snow keep you from ...

Trumbull Road and Toroweap Overlook, for example—Diamond Creek Road is the only way to drive right up next to the Colorado ...

In the afternoon, while his crew set up camp for the night, Powell would often climb into the canyon to investigate. Much has been learned about the geology of the Grand Canyon and about the ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon ... that travels to the bottom of the canyon; it will likely take ...