Yellowstone National Park has lifted most of its temporary fishing restrictions after cooler weather and improving water temperatures reduced stress on the park’s fisheries.
According to the National Park Service, anglers may once again fish on most rivers, streams and lakes throughout the park from sunrise to sunset, as outlined in the 2026 Yellowstone Fishing Regulations. The updated rules took effect Aug. 12.
The restrictions were originally implemented in late July after high water temperatures and low stream flows created conditions that could be harmful or fatal to trout.
Some closures remain in place. The Madison River, Firehole River and the Gibbon River downstream of Norris Campground remain closed to fishing until conditions improve. The National Park Service said those waterways are more susceptible to elevated water temperatures because of nearby geothermal features.
Park officials will continue monitoring water temperatures throughout the remainder of the summer and may lift the remaining closures or implement additional restrictions if conditions change.
The National Park Service is encouraging anglers to fish during the coolest parts of the day, land fish quickly and handle fish gently in the water before releasing them to help protect Yellowstone’s native and wild trout populations.