Two such lunar canyons, Vallis Schrödinger and Vallis Planck, stretch over 270 km (168 miles) each, with depths of 2.7 km ...

While a visit to the Grand Canyon is mesmerizing and worthwhile, it's not necessarily easy. We consider the closest and most ...

Plan a winter trip to the Grand Canyon with our winter guide to the Grand Canyon. Don't let a little snow keep you from ...

Planning your next vacation to the extraordinary, iconic, stupendous Grand Canyon? Carved out by the Colorado River over millions of years, the Grand Canyon is ...

View of two grand canyons on the moon radiating from ... Width and depth of the Grand Canyon along the Bright Angel hiking ...

One of the more controversial additions to the Grand Canyon's surroundings, the Grand Canyon Skywalk is a large, semicircular bridge with a transparent glass floor, allowing tourists to walk out ...

For travelers on the North Rim, the North Kaibab Trail ... However, most agree that the views are worth the effort. Travelers can take the Grand Canyon Lodge Hiker Shuttle to the North Kaibab ...

From supermoons to a total eclipse to the national park’s biggest and best-attended star parties, these are the must-see celestial shows of the year ...

I found big adventure and warm weather in these national-park units spread across the Southeast and Southwest ...

The south end of the car camping area is on the rim, and sites 11, 14, 15, 16, and 18 have views of the canyon ... The turnoff for the campground is one-half mile north of the North Rim Lodge in Grand ...

This January, lots of hotel news came across TPG's desk, including a new Holiday Inn at the Grand Canyon, reservations ...