Antelope Canyon, a world-famous slot canyon near Page, Arizona, is renowned ... not in a U.S. national park. It's a Navajo Tribal Park, operated by Navajo Nation Parks and Recreation.

Note: Most of Arizona does not follow daylight saving time, though the Navajo Nation, where Antelope Canyon is located, does. Be sure to take this into account when planning your visit.

Despite a federal ruling rejecting a motion to remove protections on land in near the Grand Canyon, an agreement between ...

The agreement announced on Jan. 29 settles a dispute over trucking ore from a mining operation just south of the Grand Canyon ...

The Navajo Nation and tribes elsewhere in Arizona, New Mexico and Utah have a long, sordid history of disease, death and contamination linked to mining that took place during World War II and the ...