A new thermal pool has erupted onto the scene in Yellowstone National Park — slowly.
During routine surveys in mid-April 2025, park geologists noticed the new feature within the Norris Geyser Basin. The feature — a blue spring — had not been observed when geologists last surveyed the area in the Fall of 2024. However, looking back at satellite and seismic monitoring data, park experts identified the date the pool emerged, and it may have sprung up just in time for this last holiday season.
Norris Geyser Basin is one of the most prominent hot spots in Yellowstone National Park. Full of a variety of thermal features, the basin is split into two sections: Porcelain Basin, where the team located the new spring, and Back Basin.
According to the United States Geological Survey (USGS), the spring is approximately 13 feet across, and the light blue water inside it is about ...
