National Park Service

When a visitor left a bag of Cheetos at Carlsbad Caverns National Park during a summer visit, rangers describe it as a “world-changing” event for the tiny microbes that call this specialized subterranean environment home.

Arizona ranks seventh in the nation for the amount of money spent by visitors who come to see national parks and monuments.

Leaks in the pipeline that brings water from the bottom of the Grand Canyon to the South Rim are a known problem. However, the project to overhaul the Transcanyon Waterline won’t be finished until 2027.

Grand Canyon National Park recovered the body of a 20-year-old North Carolina Man after he fell from the South Rim near Pipe Creek Overlook Wednesday.

Authorities say two 4-year-old boys and a 72-year-old woman are dead after a pontoon boat capsized Friday near the mouth of Navajo Canyon within Glen Canyon National Recreation Area.

The North Kaibab Trail will be closed for survey work from north of the Manzanita Day Use Area to the Supai Tunnel starting Monday.

Park rangers at Lake Mead National Recreation Area are looking for “two vandalism suspects” after a video of two men damaging rock formations went viral.

The agreement commits the Park Service to propose a revised rule that better protects Glen Canyon by limiting OHVs and street-legal ATVs in some of the most delicate areas.

The fossil was uncovered during recent excavation work at the Mile-and-a-Half Resthouse near the South Rim as part of the Transcanyon Waterline project. It's been identified as a Equisetalean strobilus.

Federal authorities are proposing an air tour management plan for the Lake Mead National Recreation Area in northwestern Arizona and southeastern Nevada.