Named the 5th most endangered river in the US, the Rio Grande's challenges include severe drought, unsustainable use and ...

GEOQUIZ: To which state would you travel to visit Big Bend National Park? Answer: Texas. The Big Bend area is named for its location on the bend of the Rio Grande River, which separates the U.S. and ...

The Kachina Cult, possibly of Mesoamerican origin, may have taken hold among the relatively few Anasazi who lived in the Rio Grande and Little Colorado River areas about the time of the exodus.

Peru’s Marañón River was made a legal person, granting it the rights to be free-flowing and free of contamination. Mari Luz ...

The Grand Canyon is one of those things that you have to see in person to really get a feel for just how grand it really is.

The world's largest immigration detention system is on the cusp of explosive growth as Trump pursues his signature campaign ...