A pilot and six passengers were injured when a Grand Canyon tour helicopter made a hard landing in Boulder City, Nevada on Tuesday. Aviation authorities are investigating the landing.

On the state line of Virginia and Kentucky is the south's epic canyon. This site sits within a 4,500-acre park of greenwood lands in the Appalachian Mountains.

Nevada held Grand Canyon to 25 points in the first half and 22 in the second half on Saturday. The Lopes shot 29 percent from the field and 22 percent from the 3-point line.

The U.S. is home to 63 national parks, and each has scenic views, geographically diverse locations and distinct flora and fauna.One of the most well-known is Grand Canyon National Park. Carved by ...