Grand Canyon National Park is open to visitors despite a government shutdown. Visitor services may be limited. Lodging within the park remains open. The grandeur of one of America's most unforgettable ...

Visiting the world’s most famous canyon when it swaps its fiery summer reds for a palette of white and shadow is nothing short of breathtaking, which we discovered for ourselves on our RV road trip ...

The so-called “great houses” of Chaco Canyon in New Mexico may have taken decades or longer to construct. Most large complexes had four or five stories and averaged over 200 rooms, with the largest ...

New research on the magnificent Chaco Canyon architecture that flourished 1000 years ago. This striking film illustrates ground-breaking research on the magnificent Chaco Canyon architecture that ...

Visiting one of America's iconic natural landmarks expects to get only more dangerous in years to come. Extreme heat fueled by climate change will significantly increase the risk of heat-related ...

As the morning sun peeked through the trees, Rodger Kram readied himself for the coming marathon. But not the kind he used to run. Kram, a physiologist at the University of Colorado Boulder, stood ...