Last April, geologists conducting routine maintenance at temperature logging stations in Yellowstone National Park’s Norris ...

A new light blue hot spring has formed in Yellowstone’s Norris Geyser Basin after months of small hydrothermal explosions.

A 13-foot-wide hot pool formed over the winter in one of Yellowstone’s most active areas, and it could offer new insights into the park's ever-changing geothermal systems.

Located in the Yellowstone’s Porcelain Basin, the new thermal feature is believed to have appeared on Christmas Day ...

Learn about the new hydrothermal feature that appeared last winter in Yellowstone National Park, possibly on Christmas Day.

"The discovery emphasizes the dynamic nature of Yellowstone's thermal activity," Yellowstone Volcano Observatory's Mike Poland said.

“Geologists have mapped more than 100 major hydrothermal areas in Yellowstone National Park, and there are many more than 10,000 hydrothermal features within its boundaries,” scientists said.

“Geologists have mapped more than 100 major hydrothermal areas in Yellowstone National Park, and there are many more than 10,000 hydrothermal features within its boundaries,” scientists said.

Most of Yellowstone's more than 10,000 thermal features are clustered together into about 120 distinct thermal areas (shown in red). Lakes are blue.

The Geology of Yellowstone Map contains nearly 100 distinct layers that users can toggle on and off to show and hide. Many of the map layers, including several bedrock and surficial geologic maps ...

A new hydrothermal feature that popped up inside Yellowstone National Park last summer has scientists wondering if it will make another appearance this summer. Scientists first noticed it while ...

A new hydrothermal feature that popped up inside Yellowstone National Park last summer has scientists wondering if it will make another appearance this summer. Scientists first noticed it while ...