The Grand Canyon is vast, covering 1,218,375 acres and 1,904 square miles across Arizona. Here's what to know.

Highway closures and evacuations remain in effect as a wildfire burns more than 49,000 acres in Coconino County. It is one of two blazes raging at or near the northern rim of the Grand Canyon.

A meteor may have led to the formation of the Grand Canyon, new study says - The study dives into questions surrounding how and when driftwood in Stanton’s Cave in the Grand Canyon got there ...

Orange County, California is actually home to some stunning sandstone rock formations called the "Mini Grand Canyon," and ...