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Yellowstone Notebook
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...
Most Yellowstone Park Roads Closed to All Vehicles - NPS
Most Park Roads Closed to All Vehicles Most roads are closed to prepare for commercially-guided snowcoach and snowmobile travel during the winter season, which will begin December 15 (weather depending). The road between the North and Northeast entrances is the only road open year-round to regular vehicles. The only road generally open year-round to regular vehicles is from the North Entrance at Gardiner, Montana, through the park to Cooke City, Montana (via Tower Junction). Most park roads are closed to regular vehicles from early November to late-April, and are open to limited oversnow travel (commercially-guided snowmobiles and snowcoaches) from mid-December to mid-March. When open, roads are not gated at night and people may enter/exit the park 24 hours a day, seven days a week. Yellowstone has five entrance stations, and it takes several hours to drive between them. Anticipate possible road closures, and check the road status of the entrance you intend to use...