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Yellowstone Notebook
Yellowstone National Park Sees 4,762,988 Visits in 2025 - YNP News Release
News Release Yellowstone National Park Sees 4,762,988 Visits in 2025 People enjoy a view of Old Faithful from the outside deck at the Inn NPS / Jacob W. Frank News Release Date: March 17, 2026 Contact: Yellowstone Public Affairs , (307) 344-2015 MAMMOTH HOT SPRINGS, WY – Yellowstone National Park welcomed 4,762,988 recreation visits in 2025. Despite a 43-day partial government shutdown – the longest ever – the National Park Service worked to keep parks open and accessible whenever possible so visitors could continue to experience the nation’s natural and historic treasures. 2025 Visitation Highlights 4,762,988 recreation visits 86,891,452 visitor hours spent in park 1,238,983 overnight stays Visitation figures and trends help guide how the National Park Service manages parks to ensure the best possible experience for visitors. The Visitation Statistics Dashboard on NPS.gov provides recreation visit data for every park in the U.S. for 2025 and previous yea...
Mushroom Pool: The subtle spring with the spectacular story - Caldera Chronicles
Mushroom Pool: The subtle spring with the spectacular story By Yellowstone Volcano Observatory March 9, 2026 Mushroom Pool is nondescript in appearance, but its impacts on microbiology and on how research is done in Yellowstone National Park have been profound. Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Michael Poland, geophysicist with the U.S. Geological Survey and Scientist-in-Charge of the Yellowstone Volcano Observatory. Mushroom Pool is a small hot spring in Yellowstone’s Lower Geyser Basin that looms large in science. The spring’s fun(gi) name might have been given in the 1890s due to its appearance or the presence of algae and bacteria. Media Sources/Usage: Public Domain. View Media Details Mushroom Pool, Lower Geyser Basin, Yellowstone National Park. Old roads were routed very near this feature as early as 1895, when the poo...
Yellowstone National Park to extend fishing season on three rivers - YNP News Release
News Release Yellowstone National Park to extend fishing season on three rivers 2026 Yellowstone Fishing Season Map: Madison, Gibbon, and Firehole Rivers NPS News Release Date: January 27, 2026 Contact: Yellowstone Public Affairs , (307) 344-2015 MAMMOTH HOT SPRINGS, WY – Starting this year, Yellowstone National Park will extend the fishing season on three rivers in the park. The following waterways, located in the west side of the park, will open May 1 for fishing access, weeks in advance of the standard fishing season: Firehole River ( see map ): The Firehole River and all associated tributaries downstream to the confluence with the Gibbon River at Madison Junction. Gibbon River ( see map ): The Gibbon River and all associated tributaries from the bridge on the Grand Loop Road at the Norris Campground entrance downstream to the confluence with the Firehole River at Madison Junction. Madison River ( see map ): The Madison River and all ...
Yellowstone National Park seeks public input on environmental assessment for North Entrance Road Reconstruction Project - YNP News Release
Yellowstone National Park seeks public input on environmental assessment for North Entrance Road Reconstruction Project In-person meeting Jan. 13 and virtual meeting Jan. 14; 30-day public comment period begins Jan. 5 Yellowstone flood event 2022: Impacts to road in Gardner River Canyon from below road level NPS / Jacob W. Frank S News Release Date: January 5, 2026 Contact: Yellowstone Public Affairs , (307) 344-2015 MAMMOTH HOT SPRINGS, WY – The National Park Service (NPS), in cooperation with the Federal Highway Administration (FHWA), is seeking public input on an environmental assessment (EA) for the reconstruction of the new permanent North Entrance Road in Yellowstone National Park. Goals for the new road alignment include continuing to provide year-round access between Gardiner and Cooke City/Silver Gate, Montana, improving the road’s safety, and ensuring long-term visitor access while protecting natural and cultural resources. Yellowstone experienc...
Yellowstone National Park's winter season begins Dec. 15, 2025 - YNP News Release
News Release Yellowstone National Park's winter season begins Dec. 15, 2025 Top things for visitors to know about a winter visit Snowcoach along the Madison River with bison NPS / Jacob W. Frank News Release Date: December 10, 2025 Contact: Yellowstone Public Affairs , (307) 344-2015 MAMMOTH HOT SPRINGS, WY – Yellowstone National Park’s winter season begins Monday, Dec. 15. Annually from mid-December until mid-March, visitors can travel most of the park’s roads from the West, South, East and North entrances by approved commercially guided snowmobiles and snowcoaches and via the non-commercially guided snowmobile access program . Currently, the accumulation of snowfall on roads varies across the park. This means that visitors will be able to travel in the park, however, the type of transportation used on park roads by commercially guided snowmobile or snowcoach tour companies will depend on road conditions. Throughout the winter season, park staff wi...
Was there ever a Yellowstone on Mars? - Caldera Chronicles
Was there ever a Yellowstone on Mars? By Yellowstone Volcano Observatory November 24, 2025 Yellowstone is not just a fantastic natural laboratory for Earth-based studies. A better understanding of hydrothermal activity in the first National Park can also provide clues about what Mars might have looked like long ago. Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from R. Greg Vaughan, research scientist with the U.S. Geological Survey, and Steve Ruff, associate research professor in the School of Earth and Space Exploration at Arizona State University. Today, Mars is a cold and dry planet with a very thin, low-pressure atmosphere. It has water, but it's all frozen, locked up in underground ice (like permafrost) and in polar ice caps. But billions of years ago Mars had a thicker atmosphere and a warmer and wetter clima...