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 ...

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

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

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 ...