A routine temperature check at the Norris Geyser Basin in Yellowstone National Park led geologists to discover a new blue water spring.

In Yellowstone National Park, you can hike to your heart's content. Discover the park's less-known beauty on these underrated trails recommended by visitors.

Yellowstone geologists find a 13-foot-wide milky blue pool near Tree Island in Norris Geyser Basin, likely formed by small hydrothermal explosions on Christmas.

Yellowstone geologists discovered the baby hydrothermal feature in April while doing routine work at Norris Geyser Basin, the park’s oldest geothermal area, according to the Yellowstone Volcano ...

The National Park Service is clearing up any misconceptions on whether wildlife is migrating away from Yellowstone National Park. Videos have been spreading on social media platforms that appear ...

The National Park Service is clearing up any misconceptions on whether wildlife is migrating away from Yellowstone National Park.

Yellowstone geologists find a 13-foot-wide milky blue pool near Tree Island in Norris Geyser Basin, likely formed by small hydrothermal explosions on Christmas.

(WYOMING) -- More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.

Yellowstone National Park officials have euthanized an adult female black bear following a series of troubling incidents at a backcountry campsite in the Blacktail Deer Creek drainage area.