Long ago, Hispanic sheepherders carved names, dates and drawings into Valles Caldera’s aspens. Can a small team of surveyors record the etchings before they disappear?

Learn how geologists at Yellowstone National Park clean up hot springs filled with litter, saving them from irrevocable damage.

Data released by the NPS on Friday shows its parks – the term used to describe all of its sites, not just true national parks ...

Every time they're spotted, the internet loses its mind. Here's what you should know about one of Yeti's most compelling hard-to-find Tundra coolers.

A new thermal vent spewing steam in the air at Yellowstone National Park is gaining attention, mainly because it's visible from a road rather than any significant change in the park famous for its ...

Yellowstone National Park has been around since 1872. Here are some fun facts you may not have ever learned about the country ...

When we look at the solid ground beneath our feet, it's easy to assume Earth has always been this way. But our planet tells a story so extraordinary, so ...

What does a nondescript hot spring in Yellowstone’s Lower Geyser Basin have to do with Indiana Jones? Caldera Chronicles knows. Throw us the idol and we’ll throw you the story!

Grizzle bears are not known to travel in herds like this all at once and great distances, and they are headed towards Salt Lake City, Utah." ...

A tourist died late last week after entering a closed, hazardous area of Hawaii Volcanoes National Park in what some say is ...