Idaho park closures & advisories

National Park Service

The parking lot, boardwalk, and Firehole River at Biscuit Basin, located north of Old Faithful, is closed to all travel until further notice due to the possibility of another event at the site of a hydrothermal explosion that occurred July 23, 2024.

Updated Jul 1, 2026Official notice ↗

National Park Service

Please do not rely upon GPS digital navigation systems to find your way to Craters of the Moon. Please note that the Robert Limbert Visitor Center at 1266 Craters Loop Road is located just off U.S. Highway 20/26/93 and is not accessed via any unpaved roads.

Updated May 21, 2026Official notice ↗

National Park Service

The following rivers and their tributaries are closed to fishing due to warm water temperatures and low flows: Madison River, Firehole River, and Gibbon River.

Updated Jul 15, 2026Official notice ↗

National Park Service

Expect up to 15-minute delays on Gibbon River Bridge from July 9 through late-July while crews repair the railing.

Updated Jul 9, 2026Official notice ↗

National Park Service

Expect a single lane of traffic with up to 15-minute delays, 24 hours a day, seven days a week, from April 1 through late October 2026. Oversized/overweight vehicles (8'6"+ wide, 75'+ long, 80,000 lbs+ gross vehicle weight) will not be able to cross the bridge during this time.

Updated Mar 19, 2026Official notice ↗

National Park Service

Although an entrance pass is required to enter Yellowstone National Park, vehicle reservations are not needed. You are encouraged to purchase an entrance pass before arriving, but you may also purchase passes at any entrance station upon arrival.

Updated Jun 18, 2025Official notice ↗