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

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village area ...

According to the National Park Service, Yellowstone holds about half of the world's active geysers, and it's also home to one of nature's most spectacular landscapes: the Grand Canyon of the ...

New Mexico's beautiful slot canyon, with its picturesque western views, dramatic white rock formations, and endless horizon, ...

Grand Prismatic Spring ascended from a beautiful backwater spot to the second most popular destination in Yellowstone ...

If you have extra time, Grand Canyon of the Yellowstone is worthwhile. Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon ...

Steve Camden of Columbus captured this view of the river flowing through the Grand Canyon of the Yellowstone. Nobody covers ...

Through this very area, the Nez Perce forded the Yellowstone River at Nez Perce Ford, traveled through Pelican Valley and ...

Yearly visitation rose into the tens of thousands. By 1919, the Grand Canyon was attracting nearly as many tourists as Yellowstone or Yosemite. But it was still a national monument, and still ...

It’s no secret that Yellowstone National Park can be jampacked in the summer, when up to 1 million people jockey for space ...

from Yellowstone's geysers and springs to the Everglades' gator-filled swamps. Iconic outdoor destinations like Great Smoky Mountains National Park and the Grand Canyon are justifiably popular ...