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

Yellowstone National Park's geological history is one of the most intensely studied in North America. A new geologic unit ...

Millions of years ago, a volcano created Wheeler Geologic Area. We visited the hoodoo-filled landscape and learned what it ...

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.

Yellowstone Lake is ranked #8 out of 17 things to do in Yellowstone National Park. See pictures and our review of Yellowstone Lake.