6 active NPS alerts as of Oct 28, 2026: 1 closure, 0 danger, 2 caution and 3 information.
Closure
Tent Camping Closed at Multiple East End Campgrounds
Due to increased human-wildlife interactions and food storage concerns, individual tent sites and group sites at Three Mile, Daisy Farm, Moskey Basin, and Caribou Island Campgrounds are currently closed. Tent and hammock camping are not permitted anywhere within the campground. Off-trail camping zones 10, 11, 12, 13, 30, 31, 32, 33, 34, 35, 36, 37, 38 are closed. Shelters remain open. Closed areas will be patrolled to ensure compliance.
Posted or updated Aug 27, 2026 ·Details on nps.gov
Caution
Island Mine Campground Stream Low
The stream has very little water flow. Campers should bring enough water to Island Mine or plan on collecting water along your route.
Posted or updated Sep 18, 2026 ·Park conditions on nps.gov
Caution
Harmful Algal Blooms Occurring in Lake Richie and Intermediate Lake
Blooms are tested for toxin levels and monitored. Toxin levels are consistently low on Isle Royale. It is not recommended to filter water in any areas where there is surface scum, strong odors, or other evidence of a significant bloom. Blooms move around depending on wind and rain – filter water from places where blooms are not present or a different water source. It is low risk to filter water from relatively clear areas of an impacted water source.
Posted or updated Aug 20, 2026 ·Details on nps.gov
Information
Boat Fuel Unavailable
Fuel for boaters will not be available from September 13 through October 31 except for emergencies only. Boaters are encouraged to bring extra fuel in containers.
Posted or updated Sep 18, 2026 ·Details on nps.gov
Information
All Backpacks Must be in Storage Area at Three Mile and Rock Harbor.
All backpacks must be stored in backpack storage areas at Three Mile and Rock Harbor campgrounds. All food and scented items are to be in the Food Storage Lockers. Containers should be kept in the Food Storage Locker when space allows or near the Food Storage Locker, do not store in tents.
Posted or updated Aug 7, 2026 ·Details on nps.gov
Information
Food Storage Regulations in Effect
Proper food storage is required on Isle Royale. All food, trash, scented items, cooking supplies, cooking utensils, and fish/fish parts must be stored properly. To learn more about food storage and to learn how to properly store your food, trash, and scented items, click "more."
Posted or updated Jun 30, 2026 ·Details on nps.gov
