Recent visitors gushed over the rainbow array of the spring ... Access to the Grand Prismatic Spring is included in Yellowstone's seven-day pass ($35) and there are no set hours of operation.

focusing on Yellowstone's geothermal features. While wide-eyed enthusiasts come from far and wide to see the dazzling rainbow colors of the Grand Prismatic Spring or dependable bursts of Old ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

Trout Unlimited is proposing to complete the second phase of work to create better fish spawning and rearing habitat on Mill ...

"Y: Marshals" is created by Taylor Sheridan and David C. Glasser with Spencer Hudnut set as showrunner for the spinoff series ...

As the headquarters of Yellowstone National Park, the Mammoth Springs Historic District is also home to historic buildings, including structures that date back from the Fort Yellowstone days ...

In 2024 the peak flow on the Shields River in Park County was on Sept. 19 – not during spring runoff – following a heavy fall ...

Their images helped influence Congress to make Yellowstone the first National Park. Smithsonian American Art Museum Rainbow over the Grand Canyon of the Yellowstone Smithsonian American Art Museum Old ...

19 — not during spring runoff — following a heavy fall ... the biggest of which is the Yellowstone River. Opitz works on a section of the state's longest free-flowing stream — from ...