Yellowstone National Park announced Monday the discovery of a new 13-foot baby blue hot spring. It emerged with little ...

Yellowstone National Park geologists were surprised during a routine maintenance check. While inspecting temperature monitoring stations at Norris Geyser Basin, scientists discovered a brand-new ...

The blue water spring is about 13 feet in diameter and 1 foot below the rim, USGS said. The water in the pool was measured at 109°F.

Get ready for a little Christmas in July: There’s a new baby blue pool in Yellowstone National Park, and science suggests it started forming on the winter holiday.

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed ...

The West Thumb Geyser Basin is located along the western edge of Yellowstone Lake. There is a fantastic boardwalk trail that leads you past amazing hydrothermal features that are constantly ...

YELLOWSTONE NATIONAL PARK (AP) - Steamboat geyser erupted for the fourth time in just over a year, prompting new questions about increased activity for the world's biggest geyser.

Some of the largest hydrothermal explosions of the past 150 years in Yellowstone National Park occurred in the 1880s at Excelsior Geyser, which is adjacent to Grand Prismatic Spring in Midway ...

Yellowstone's Upper Geyser Basin plays host to Old Faithful along with about 300 other active geysers, according to the National Park Service.

The dominant rock type in the Yellowstone region is rhyolite, and that is very rich in silica. As hot water circulates ...