Tourists at Big Bend National Park in Texas have been warned of unhealthy air quality levels on Tuesday, according to the U.S. Environmental Protection Agency (EPA). An air quality map from the EPA's ...

The cliffs of Santa Elena Canyon rise above the river in Big Bend National Park along the Rio Grande River on the United States border with Mexico, Tuesday, April 25, 2017. Rodger Mallison ...

One of the top things that travelers love to do when they visit the United States is to embark on a great American road trip, filled with plenty of stunning national parks. From Yellowstone's ...

I've visited all of the national parks in the US. Of the 63, I have a few favorites and letdowns. National parks like Gates of the Arctic, Big Bend ... hikes (like Santa Elena Canyon), or rafting ...

Butch Hancock, who has been a river guide for decades, leads expeditions with his guitar—and often Jimmie Dale Gilmore—in tow ...

Peer across the Santa Elena Canyon ... through Sequoia National Park, connecting with Kings Canyon National Park and the Sequoia National Forest. For anyone interested in big trees, this is ...