South Lake Desor Campground
The park is open for the 2026 season (April 16 through October 31). Current conditions as of May 2026: potable water is not available at Rock Harbor or Windigo, functioning outhouses are available but bring toilet paper, and wolf activity is high requiring proper food storage. Ice and snow persist on some trails and campgrounds. Individual sites are first-come, first-served; group sites require advance reservation.
About
South Lake Desor Campground sits on the south shore of Lake Desor, one of Isle Royale's larger inland lakes, accessible via the Greenstone Ridge Trail. This remote wilderness campground requires a multi-day backpacking trip to reach, as Isle Royale itself is only accessible by ferry or seaplane from Michigan's Upper Peninsula or Minnesota. The campground is near Mount Desor, the highest point on Isle Royale at approximately 1,362 feet. The campground has 10 tent sites total: 7 individual sites available first-come, first-served and 3 group sites requiring advance reservation. Facilities are minimal but include seasonal composting toilets, non-potable water (must be treated before drinking), and food storage lockers essential for protecting supplies from wildlife. Wolf activity is high on the island, making proper food storage critical. All overnight visitors must obtain a permit, which is free for parties of six or fewer and obtained upon arrival at Rock Harbor or Windigo. Groups of 7-10 require advance reservations at $25 per permit. A 2-night consecutive stay limit applies from June 1 through Labor Day. Campfires are prohibited; only self-contained camp stoves are allowed.
Directions
South Lake Desor Campground is located on the south side of Lake Desor off of the Greenstone Ridge Trail. Access is by foot only via multi-day backpacking from Rock Harbor or Windigo ferry terminals. No canoe, kayak, or boat access to this campground.
Location
Amenities
| Water | No |
| Fires Allowed | No |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | No |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $0 - $25 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| isro_parkinfo@nps.gov | |
| Phone | +1 (906) 482-0984 |
Cell Service
| AT&T | None |
| Verizon | None |
| T-Mobile | None |
Photos
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