The Boulder Mail Trail doesn’t sound exciting, but it offers some of Grand Staircase-Escalante National Monument ... Route finding experience, topographic maps, and a GPS are recommended. This hike is ...

Exhibits, videos, and topographical relief maps inside the visitor center explain the overall development of water storage in the Colorado River Basin, as well as information on the Glen Canyon Dam.

The Fissures: Cracks so deep, they make the Grand Canyon look like a sidewalk crack ... The Yosemite Valley spreads out below you like a 3D topographic map, with El Capitan and Half Dome playing ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

STEPHENVILLE, Texas (AP) — Tyon Grant-Foster had 19 points in Grand Canyon’s 64-60 victory over Tarleton State on Thursday night.

GRAND CANYON NATIONAL PARK, AZ (AZFamily) — People can once again enjoy a hike at Arizona’s world-famous natural wonder. The National Park Service said on Wednesday evening that inner canyon ...

PHOENIX (AZFamily) — Major trails at the Grand Canyon re-opened Thursday afternoon after being closed for nearly 20 hours following a chlorine gas leak inside the canyon last night. The closures ...

Projectiles flying faster than bullets from a blast 130 times bigger than the global nuclear stockpile helped form giant lunar canyons, according to a new study.

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

On Monday, a federal judge upheld National Monument protections on parts of the Grand Canyon. On Wednesday, the Navajo Nation reached an agreement with Energy Fuels, the nation's largest uranium ...