The steep canyon walls keep out much of the sunlight, giving it a dark appearance and inspiring the "Black Canyon" name ... It also makes the air unhealthy for people, wildlife and natural resources.

If the Grand Canyon's beauty has captured your heart, find even more magic at some of America's other canyon-filled national ...

Jordan Marsters, a resident of Denver, was traveling through Grand Junction on Feb. 11 and was in Montrose before he went missing.

MONTROSE, Colo. — Human remains found at Black Canyon of the Gunnison National Park are believed to be those of a Denver man ...

Even the dead ones live on as havens for wildlife and subjects for detail ... plenty of parking and an occasional site host. Details: Black Canyon Trail Coalition, bctaz.org.

Sculpted by the Gunnison River, Black Canyon of the Gunnison ... hiking along the canyon, camping, fishing, wildlife watching and stargazing. Contributing: Fernando Cervantes Jr., USA TODAY ...