Atlas Obscura on Slate is a blog about the world's hidden wonders. Like us on Facebook, Tumblr, or follow us on Twitter @atlasobscura. The Grand Prismatic Spring in Yellowstone National Park shows ...

A pair of tourists decided they wanted a closer look at Yellowstone National Park's biggest and most famous hot spring, wandering off the boardwalk and ignoring warning signs to stand right on the ...

Yellowstone National Park is home to more than one colorful hot spring. One iconic stop has transformed dramatically over the years for an unexpected reason.

Reporting from — Of course you’ll do Yellowstone’s Old Faithful. But you also should head 7 miles north and visit Grand Prismatic Spring. It’s the largest spring in the park, about 300 feet across, ...

Anybody who has ever seen the stunning coloration of Yellowstone’s Grand Prismatic Spring could easily argue that the hot spring is one of the most beautiful natural sites on Earth. Located in the ...

The summer crowds at Yellowstone National Park were confronted with the heartbreaking sight of a bison stumbling and then falling into the 160-degree Grand Prismatic Spring, one of the park’s main ...

As crowds of visitors stroll along wooden walkways in Yellowstone National Park’s Midway Geyser Basin, steam clouds billow from the colorful Grand Prismatic Spring. The best vantage point I found was ...

Officials at Yellowstone National Park are investigating reports that a tourist crashed a drone into the famous and picturesque Grand Prismatic hot spring. "We've got eyewitness reports that it went ...

The gorgeous colors of Yellowstone National Park's Grand Prismatic hot spring are among the park's myriad hydrothermal features created by the fact Yellowstone is a supervolcano - the largest type of ...

Yellowstone officials saw few violators during the first few months of a new prohibition against drones launched from National Park Service land. But last weekend someone flew his drone into ...