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

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

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

On Monday afternoon, the U.S. Geological Survey announced the discovery of a new geothermal pool in Yellowstone National Park ...

Jimmy Kimmel gave a salute to “The Late Show With Stephen Colbert” — and blasted rival network CBS — on Thursday evening, ...

Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. It may have coincided with a ...

Ice-blue in color, warm in temperature and a little larger than a backyard hot tub, the pool is the newest known feature to ...

C, 2001–2002. Uplift near Norris and subsidence of the caldera floor continued to slow during this period. Arrow labeled NGB marks the location of Norris Geyser Basin. D, 2002–2003.

Named for Philetus Norris, who served as Yellowstone National Park superintendent from 1877 to 1882, Norris Geyser Basin is Yellowstone's hottest and most-changing geyser basin.

Norris Geyser Basin also hosts several craters that reach up to 100 meters (328 feet) in diameter. These craters were formed during hydrothermal explosions that ejected boiling water, mud and rocks.

Norris Geyser Basin is one of the only major thermal basins located outside of Yellowstone Caldera (it is about 2.5 miles north of the caldera rim) and covers an area of about 800 acres.

Bozeman, Mont. • It was the talk of the boardwalk. Everyone had heard that there was an unusually active geyser at Yellowstone National Park in the Norris Geyser Basin, near the center of the park.