See Yellowstone National Park’s most colorful hot springs from a great vantage point when you hike the Grand Prismatic Spring ...

I've visited all 63 major US national parks. I think Great Smoky Mountains and Grand Canyon are some of the best parks for ...

On the morning of June 21, visitors at Grand Prismatic Spring in Yellowstone National Park observed a bison slip into a ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

Grand Canyon of the Yellowstone is ranked #1 out of 17 things to do in Yellowstone National Park. See pictures and our review of Grand Canyon of the Yellowstone.

In what year was Yellowstone National Park established as the world's first national park? Test your knowledge of Yellowstone National Park! Attempt this GK quiz on its location, wildlife, and facts ...

The remarkable Grand Prismatic in Yellowstone National Park is the single largest hot spring in the park—it’s larger than a football field, so it’s hard to miss!

An expert roadtripper's guide to the best American road trips based on their proximity to adventure—from fly fishing holes to flowy singletrack and unreal stargazing.