For more information, visit on the National Park Service's Grand Prismatic Spring page. Grand Canyon of the Yellowstone Rim and Loop Hike with Lunch (323 reviews) ...

How the Grand Prismatic Spring Gets Its Kaleidoscopic Colors The beating heart of Yellowstone National Park is without a doubt the Grand Prismatic Spring—the largest hot spring in the U.S.

Grand Prismatic Spring, and the Grand Canyon of Yellowstone. Established in 1872, Yellowstone was the world's first national park. This wonderland of geothermal features is located mostly in Wyoming, ...

A fall snowstorm blew through Yellowstone National Park late Thursday and ... the eruption of Old Faithful. Grand Prismatic ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park ... colors of Grand Prismatic Spring come from ...

A Wildlife Photographer of the Year captures the paradox of the park. 9 min read Michael ... More than a third of Yellowstone, including Grand Prismatic Spring, sits within the caldera of a ...

Towering over crystal clear lakes and the surrounding prairie lands they give their name to Grand Teton National ... Prismatic Spring wouldn’t exist without it. A reminder that danger and beauty often ...

Yellowstone National Park's nearly 3,500 square miles ... the Old Faithful area is home to Old Faithful and the Grand Prismatic Spring, two of Yellowstone's most famous attractions.