Isle Royale National Park

Isle Royale is not a single island so much as an archipelago, a big main island about 45 miles long stretched northeast to southwest, with more than 400 smaller islands scattered around it. The whole park sits inside Lake Superior, the largest and coldest of the Great Lakes, closer to Canada and Minnesota than to the rest of Michigan. The land is made of hard, ancient rock folded into long parallel ridges, so hiking here often means walking a spine of stone with water shining on both sides. In between the ridges lie dozens of quiet inland lakes, bogs, and beaver ponds, and the shoreline breaks into coves, harbors, and rocky points.

Because it is so remote and so protected, Isle Royale is one of those rare places that feels genuinely wild. It is the least-visited national park in the lower 48 states, and one of the only ones that closes entirely for winter. Reached only by ferry or seaplane, it draws backpackers and paddlers who want the trails and the water almost to themselves. There is a small developed hub at each end, Rock Harbor on the northeast and Windigo on the southwest, but step a mile past either one and you are deep in the backcountry.

The island is most famous for its wildlife story. Moose swam or crossed the ice to the island long ago, and wolves followed later, and for more than sixty years scientists have tracked the two together in the longest-running predator-prey study on earth. Beyond the wolves and moose, the park protects loons, beavers, foxes, and one of the darkest, quietest night skies you can find east of the Mississippi. With 165 miles of hiking trails and paddling routes threading its lakes and shoreline, Isle Royale rewards anyone willing to make the trip out.

• By ferry or seaplane from Michigan, out of Houghton or Copper Harbor on the Keweenaw Peninsula. Passenger ferries and a small seaplane make the crossing in the warm months only, and the whole operation shuts down for winter. Seats and cabins fill up, so this is a trip you book well ahead.
• By ferry from Grand Portage, Minnesota, on the far northwest side of Lake Superior, which is often the shortest water route to the island. Like the Michigan boats, it runs seasonally and does not operate in winter.
• There is no way to drive to Isle Royale, because it is an island with no bridge. To reach the ferry docks, most visitors drive up through Michigan's Upper Peninsula on US-41 to Houghton and Copper Harbor, or up the Minnesota North Shore on Highway 61 from Duluth to Grand Portage. Give yourself extra time, because these are long, scenic drives to remote harbor towns.

• Backpacking the island's trails is the classic Isle Royale experience. The Greenstone Ridge Trail runs the length of the main island along its high spine, and shorter loops out of Rock Harbor and Windigo let day hikers sample the ridges and shoreline. Come self-sufficient, because there are no stores in the backcountry.
• Paddling by kayak or canoe opens up a whole side of the park most people miss, gliding across sheltered inland lakes and protected coves and camping at water-access sites. Lake Superior itself is huge and cold, so paddlers stay close to shore and plan carefully around wind and weather.
• Rock Harbor on the northeast end is the busiest hub, with the main visitor center, a lodge, ranger programs, and boat tours out to lighthouses and quiet islands. It is the easiest place to base a first visit.
• Windigo on the southwest end is the quieter gateway, closest to the Minnesota ferry, with a ranger station, campground, and trailheads leading straight into the backcountry.
• Watching for moose along the trails and around the inland lakes and bogs is a highlight, especially in the early morning and evening. Wolves are here too but are shy and rarely seen, more often known by a distant howl or a track in the mud.

Long before it was a national park, the island was known to the Ojibwe, or Anishinaabe, people, who called it Minong, a name often understood to mean a good place, or a good place to gather what you need. For them Minong was a place of ancient copper. Thousands of years ago, people here dug pure copper out of shallow pits in the rock, some of the oldest metalworking in North America, and the copper was traded across great distances. The Ojibwe also fished the island's waters and gathered along its shores, and their long connection to Minong is honored in the park's history today.

In the 1800s and early 1900s newcomers came looking for that same copper, and mining companies opened works on the island, though the remoteness and the hard conditions kept them from lasting long. Commercial fishing families settled in the harbors, netting lake trout and whitefish from small boats, and a few lodges and summer cottages appeared for travelers seeking cool northern air. Traces of all of this, old mine pits, net houses, and cabins, still dot the shoreline.

As the copper and fishing faded, people began to see the island's greatest value in its wildness. A campaign to protect it gathered strength through the 1920s and 1930s, and Isle Royale was established as a national park in 1940, set aside to stay a roadless wilderness for good. In the decades since, most of the park was designated official wilderness, and the National Park Service has worked to keep it as undeveloped and quiet as any place in the country.

The island's most famous chapter is scientific. Moose reached Isle Royale in the early 1900s, and wolves arrived a few decades later, most likely crossing an ice bridge from the mainland in a hard winter. Starting in 1958, researchers began studying the two animals together year after year, and that work grew into the longest-running predator-prey study in the world. It has taught scientists a great deal about how wolves, moose, forests, and even a warming climate all shape one another on one isolated island.

• Isle Royale is regularly the least-visited national park in the lower 48 states, yet it has one of the highest repeat-visitor rates of any park. People who make the trip once tend to come back for more.
• The island's wolves most likely first arrived by walking across an ice bridge that formed over frozen Lake Superior in a bitterly cold winter, a natural bridge that appears only rarely now.
• The wolf and moose study here, begun in 1958, is the longest continuous study of a predator and its prey anywhere on earth, still running after more than sixty years.
• People mined copper on the island thousands of years ago, digging shallow pits in the rock by hand. It is some of the oldest metalworking known in North America.
• Isle Royale closes completely every winter, one of the only national parks in the country to shut its gates entirely for a season and hand the island back to the ice.
• The park is not one island but an archipelago of more than 400 islands, and by an old rule of geography it even contains its own islands within its own inland lakes.
• Because there are no roads, cars, or towns, Isle Royale has some of the darkest, quietest night skies in the eastern United States, so the stars come out in numbers most visitors have never seen.
• The island is home to moose but has no deer or bears, so hikers share the trails with a very different set of animals than most of Michigan.

• An entrance fee is charged per person per day. Check the National Park Service website for current rates and how to pay before you leave the mainland.
• The park is open from mid-April to October only and is fully closed in winter, so plan your trip for the warm months.
• You can reach the island by ferry from Houghton or Copper Harbor in Michigan, or from Grand Portage, Minnesota, or by a small seaplane. All of these run seasonally and should be booked ahead.
• Rock Harbor and Windigo are the two developed hubs, with a lodge at Rock Harbor. Everything else is backcountry, so come prepared to be self-sufficient.
• The island has 165 miles of hiking trails and dozens of inland lakes to paddle, with no roads or cars anywhere on it.
• Because of the ferry commitment and the crossing, most visitors plan for several days rather than a quick stop.

You reach Isle Royale only by boat or seaplane, because it is an island in Lake Superior with no roads and no bridge. Passenger ferries run from Houghton and Copper Harbor in Michigan and from Grand Portage in Minnesota, and a small seaplane also makes the trip. All of these run seasonally and fill up, so this is a real trip you plan and book well ahead of time.

No. There are no roads, no cars, and no way to drive on Isle Royale. Once you arrive by ferry or seaplane, you explore entirely on foot along the trails or by paddling a kayak or canoe. There are no stores in the backcountry either, so come self-sufficient with everything you need for your stay.

Isle Royale is open roughly from mid-April through October and closes completely for the winter, which is unusual for a national park. From about November through mid-April the ferries and seaplane stop running and the island shuts down entirely, so all visits happen in the warmer months.

Isle Royale is home to the longest-running predator-prey study on earth. Since 1958, scientists have tracked the island's wolves and moose year after year to learn how the two animals shape each other and the forest around them. Moose arrived in the early 1900s and wolves followed later, likely crossing an ice bridge, and studying them together on one isolated island has taught researchers a great deal about how nature stays in balance.

Yes. Isle Royale charges an entrance fee per person per day. Interagency annual passes are accepted. Check the National Park Service website for the current rate and how to pay before you head out, since you will be settling this on the mainland or at the dock.

Plan for several days rather than a quick trip. Because reaching the island means a ferry crossing or seaplane flight on a seasonal schedule, most people stay two or more nights to make the journey worthwhile. Day trips are possible from a couple of the ferries, but they give you only a short taste of the island.

Summer is the best and busiest window, roughly July through early September, when the weather is mildest and the ferries and seaplane are running on their fullest schedules. Late spring and early fall are quieter and can be beautiful, but the crossings are cold and the season is short, so plan around the mid-April to October window.

There is a lodge at Rock Harbor on the northeast end, which is the main developed hub. Most visitors camp, either at established campgrounds near the hubs or at backcountry sites reached on foot or by paddle. Because the island is remote and rugged, plan your lodging or camping ahead as part of booking your ferry.

Isle Royale is a true wilderness, so come prepared and self-sufficient with proper gear, food, water treatment, and a plan for the weather. Lake Superior is very large and very cold even in summer, so paddlers stay close to shore, watch the wind and waves, and wear a life jacket. Check current conditions and safety guidance from the National Park Service, and never count on cell service out here.

Isle Royale has some of the strictest pet rules of any national park. To protect its wildlife, especially the wolves and moose, pets are generally not allowed on the island, on the trails, or even on the ferries and seaplane in most cases. Check the National Park Service website for the current pet policy before planning any trip with an animal.