Effective Friday, Sept. 4, the remaining fishing restrictions on the Firehole, Madison and Gibbon (downstream of Norris Campground) rivers and all associated tributaries will be lifted due to cooling weather and water temperatures. Anglers will be able to fish these rivers, in addition to most other park rivers, streams and lakes, daily from sunrise to sunset as specified in the 2026 Fishing Regulations booklet.
Beginning Aug. 31, Yellowstone National Park will temporarily close Buffalo Creek, a tributary of Slough Creek in the northern part of the park, for treatment to remove invasive fish as part of ongoing conservation efforts to preserve native species. It will reopen to the public on Sept. 7.
Beginning Saturday, Aug. 1, people may apply to the 2026-2027 winter lottery for permits to snowmobile in Yellowstone National Park without a commercial guide.