Kul Wičaša Lakota actor Michael Spears narrates National Geographic's new series, National Parks: USA (out September 8).

Bison don’t exactly lust for human blood and they’re certainly not predators, but they’re known as unpredictable beasts that ...

In it, a handful of tourists in short-sleeve shirts admire the jagged ... a warming planet are everywhere here in Grand Teton National Park. With retreating glaciers, lakes depleted by drought ...

You have a big mountain to climb!” is not the sort of text you eagerly await from your girlfriend’s father. But Billy, a true ...

When people ask reporter Andrew Rossi how he ended up in Wyoming, his answer is simple — dinosaurs. From his first discovery ...

When oil workers like Jeff Springman get oil from tanks, they come face to face with toxic gases — and it can cost them their ...

LASSEN VOLCANIC NATIONAL PARK — When it comes to volcanoes ... a white-bearded research geologist at the observatory wearing a T-shirt adorned with the Periodic Table of the Elements. A USGS veteran ...