Isle Royale National Park Facts
Looking out from Moskey Basin Campground on Isle Royale National Park. (Shutterstock-A Roberts)

Article Summary: Isle Royale National Park Facts

Isle Royale National Park Facts! In this article, we provide you with 11 amazing facts about one of America’s most magnificent national parks.

More Than Just Parks is your one-stop-shop for learning everything you’ll need to know about America’s national parks. We’ve got expert guides, beautiful photos, helpful tips, films and so much more.

I’ve been to so many of these amazing places since retiring from teaching in 2018. Did I mention that I taught history? I spent a lifetime teaching about the history behind some of these natural wonders. Then I got to see them firsthand.

And now I’m sharing some of the incredible stories about these beautiful places with you. It doesn’t get any better than that!

More Than Just Parks takes a deeper dive with its national park facts. We’ve done our homework so that you’ll get more than you bargained for.

let’s get started.

Isle Royale National Park Facts
Illustration of the Isle Royale National Park Emblem patch logo on a dark background. (Shutterstock-swarn’o)


Facts About Isle Royale National Park


Some Basic Facts About Isle Royale National Park

Isle Royale National Park is a beautiful and wild park located in Michigan. The park covers over 571,000 acres of land and is home to a wide variety of plant and animal life, as well as several unique geological features.

Isle Royale is an island located in Lake Superior, the largest of the Great Lakes. The park is known for its rugged and remote wilderness, with few roads or developed facilities. It is a popular destination for hikers, who can explore the island’s many trails and backcountry campsites.

The park’s landscape is diverse, with forests of maple and birch trees, alpine meadows, and crystal clear streams and lakes. The park is also home to a wide variety of plant and animal life, including moose, wolves, and over 200 species of birds.

There are many ways to explore and enjoy Isle Royale National Park. Visitors can go hiking or backpacking on the park’s trails, go fishing or boating in the park’s lakes, or even go scuba diving in the park’s clear waters. There are also several campgrounds and lodges located within the park, providing comfortable accommodations for visitors.

Isle Royale National Park is a beautiful and wild place, offering visitors the opportunity to experience the beauty and majesty of the natural world in a truly special setting. It is a great destination for park lovers, with plenty of opportunities for hiking, camping, and other outdoor activities.

Map of Isle Royale | Isle Royale National Park Facts
Map of Isle Royale National Park | Courtesy of Wikimedia Commons

Now Here Are Some Basic Facts

  • Location: Michigan
  • Acreage:  572,000 acres
  • Visitation: Isle Royale is one of the least-visited national parks in the U.S. averaging around 20,000 visitors per year, according to the National Park Service website.
  • Highest Elevation: The highest elevation on the island is Ishpeming Point, 705 feet above the level of the lake.
  • Lowest Elevation: The lowest elevation found in Isle Royale is 601 feet at Lake Superior.
  • Average Annual Precipitation: The rainy period of the year lasts for 8.4 months, from March 23 to December 2, with a sliding 31-day rainfall of at least 0.5 inches.
  • When Did It Become A National Park? Isle Royale National Park was authorized by Congress on March 3, 1931 by President Herbert Hoover “to conserve a prime example of North Woods Wilderness.” Isle Royale National Park was established on April 3, 1940 by President Franklin D. Roosevelt.
Isle Royale National Park Facts
Rock Harbor Lighthouse stands at the intersection of Moskey Basin, Middle Islands Passage, Tonkin Bay, and Lake Superior, in Isle Royale National Park, Michigan. (Shutterstock-Steve Lagreca)

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Isle Royale National Park Facts


Top 5 Isle Royale National Park Facts


1. Isle Royale Had An Active Sea-Faring Trade

For someone who is a retired history teacher and lifelong history buff, for me one of the most fascinating of the Isle Royale National Park Facts has to do with ships which frequented this area.

According to the National Park Service, Native American copper hunters were probably the first navigators to risk the dangerous Lake Superior waters in order to travel to Isle Royale.

They most likely used the birch bark canoe, which was strong and versatile.

Native Americans in birch bark canoes
The earliest seafarers were likely Native Americans in birch bark canoes | Isle Royale National Park Facts – Courtesy of Wikimedia Commons

Isle Royale Was A Voyageurs Highway

During the 1600s, European-American missionaries, traders, and explorers who ventured to Isle Royale also used the canoe.

The famous route just north of lsle Royale, the “Voyageurs Highway,” was traveled by many canoes carrying trade goods from Mackinac or Montreal to get to Grand Portage.

Between the 1770s and the 1820s, furs were transported by the Northwest Company from Grand Portage (and later, Fort William) to Sault Sainte Marie in sailing ships.

11 Fascinating Facts About Isle Royale National Park
SS Kamloops, circa 1920s – Courtesy of NPS

The American Fur Company

It was not until 1837 when the American Fur Company established fishing posts on the island that large vessels and regular boat service began to arrive.

The American Fur Company had fishing operations at several sites on Isle Royale, with major warehouses located at Siskiwit Bay and Rock Harbor. These warehouses were visited by company-owned schooners that delivered supplies to the island and transported fish to Sault Sainte Marie.

After the Isle Royale American Fur Company fisheries closed in 1839, the island was not frequented by large sailing ships until the first copper mining rush in 1843, when the island saw an influx of ships transporting miners and supplies.

Isle Royale National Park Facts
Dawn breaks over Moskey Basin, at Isle Royale National Park, Michigan. (Shutterstock-Steve Lagreca)

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2. The Park Is Not Easily Accessible

Another of the more interesting Isle Royale National Park Facts, especially if you’re planning a visit there, has to do with its physical accessibility.

Isle Royale’s physical isolation and primitive wilderness challenged human use for centuries; ironically today it has become the Island’s main attraction.

Accessible only by boat or seaplane, visitors come to experience this island park through hiking its trails, paddling its inland waterways, exploring its rugged coast, or venturing into the depth of its shipwrecks.

11 Fascinating Facts About Isle Royale National Park
Houghton Visitor Center | Isle Royale National Park Facts – Courtesy of NPS

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3. Isle Royale Is A UNESCO International Biosphere Reserve

One of my favorite Isle Royale National Park Facts is that, in 1980, the park was named a UNESCO International Biosphere Reserve.

What are “biosphere reserves?” Biosphere reserves are ‘learning places for sustainable development.’ They are sites for testing interdisciplinary approaches to understanding and managing changes and interactions between social and ecological systems, including conflict prevention and management of biodiversity.

They are also places which provide local solutions to global challenges.

Biosphere reserves include terrestrial, marine and coastal ecosystems. Each site promotes solutions reconciling the conservation of biodiversity with its sustainable use.

The forest of Isle Royale as seen from an overlook | Isle Royale National Park Facts
The forest of Isle Royale as seen from an overlook | Isle Royale National Park Facts – Courtesy of NPS

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4. The Park Is Home To A Variety Of Creatures

Wildlife watchers will certainly enjoy the next of our Isle Royale National Park Facts. The park is home to a variety of creatures.

They include: beavers, foxes, moose, rodents, snowshoe hares and wolves.

The area has become one of the most significant study sites for predator-prey interactions and its wolves are among the most famous wild animals in the world.

Female wolf having a tooth inspection by veterinarians. Former Isle Royale National Park Superintendent
Female wolf having a tooth inspection by veterinarians. Former Isle Royale National Park Superintendent, Phyllis Greene, records data. (Courtesy of NPS)

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5. Isle Royale Is Made Up Of Many Islands

Here’s another amazing Isle Royale National Park Fact. The park is composed of not one, but many islands.

In fact, it’s actually one large island surrounded by over 450 smaller islands.

Isle Royale encompasses a total area of 850 square miles including submerged land, which extends 4 1/2 miles out into the largest fresh water lake in the world.

Long and thin, the large island (Isle Royale) is 45 miles in length and about 9 miles wide at its widest point. Along with Isle Royale and its surrounding islands.

The park contains all submerged lands within a few miles of the islands.

Isle Royale National Park Facts
Backpacker hikes across ridge on Isle Royale National Park (Shutterstock-Brynn DeLange)

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Top 11 Isle Royale National Park Facts


6. Isle Royale Is One Of The Least Visited National Parks

Now if you’re someone who isn’t too fond of crowded national parks then our next Isle Royale National Park Fact ought to have you jumping for joy. Isle Royale is one of the least visited national parks.

In 2018, over 25,000 people visited the site. There are national parks that see 25,000 visitors in a week!

Compare that to The Great Smoky Mountains National Park, already the nation’s most-visited national park, which welcomed a record 11.4 million visitors in 2018. That’s almost 220.000 visitors each week!

Isle Royale National Park Facts
Isle Royale Forest – Courtesy of NPS

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7. The Park Has A Wolf Relocation Program

One of the least known yet most interesting of the Isle Royale National Park Facts is that the park has a Wolf Relocation Program.

Wolves first arrived to Isle Royale in the late 1940’s after crossing an ice bridge. Researchers began annual winter observations in 1958. The population has reached as high as 50 and as low as two.

Isle Royale began wolf relocations began in Fall 2018 when gray wolves in the Great Lakes region were still protected by the USFWS reinstatement of gray wolves to the Endangered Species List.

After almost 45 years, gray wolves were de-listed from the Endangered Species List in October, 2020.

Wolf being fitted with a electronic collar as part of the Wolf Relocation Program
Wolf being fitted with a electronic collar as part of the Wolf Relocation Program | Isle Royale National Park Facts – Courtesy of NPS

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8. Isle Royale Has A History Of Deadly Fires

Just when you thought we couldn’t come up with any additional Isle Royale National Park Facts we surprise you. Isle Royale Has A History Of Deadly Fires.

According to the National Park Service, there were 31 fires between 1847 and 1898.

On July 25, 1936, a large fire started on Isle Royale near Siskiwit Bay. It is unclear whether this fire was human or lightning caused.

Burning 27,000 acres, about one-third of the island, this fire had a more profound effect on the vegetation and animal life of Isle Royale than any other single historical event to date.

Aerial view of the Fire of 1936
Aerial view of the Fire of 1936 | Isle Royale National Park Facts – Courtesy of NPS

In 1948, fire broke out on Isle Royale following a lightning strike southeast of Lake Desor. This fire burned approximately 1,440 acres in an area previously burned by the Fire of 1936.

An aerial view of the 2021 Horne Fire from the northeast side of Isle Royale
An aerial view of the 2021 Horne Fire from the northeast side of Isle Royale – Courtesy of NPS

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9. Isle Royale Has Many Bird Species

We haven’t forgotten about our bird-watchers. Our next Isle Royale National Park Fact is for you!

The park happens to be home to many bird species.

They include: the sandhill crane, great blue heron, downy woodpecker, snow bunting, double-breasted cormorant, winter wren and ovenbird.

Currently, there are 82 bird species that frequent the Isle Royale.

Sandhill Crane
The Sandhill Crane is one of the 82 bird species to be found at Isle Royale National Park | Isle Royale National Park Facts – Courtesy of Wikimedia Commons

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10. There Have More Than 25 Shipwrecks At Isle Royale

One of my favorite Isle Royale National Park Facts has to do with ships. Or, to be more specific, with shipwrecks.

The list of shipwrecks of Isle Royale includes more than 25 ships that have been sunk near Isle Royale in Lake Superior.

Isle Royale has been an obstacle to shipping on Lake Superior since the earliest days.

In fact, there are ten shipwrecks at Isle Royale National Park that have been listed on the National Register.

These include the Alogma, America, Henry Chisholm, Chester A. Congdon, George M. Cox, Cumberland, Emperor, Glenlyon, Kamloops, and the Monarch.

One of the earliest shipwrecks would be that of the Kamloops in 1927.

Wheel of the SS KAMLOOPS
Wheel of the SS KAMLOOPS – Courtesy of NPS

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11. The Park Closes For Winter

While the last of our Isle Royale National Park Facts may not be the most interesting, it’s definitely one that’s worth knowing if you’re planning on visiting.

Isle Royale National Park closes for winter, which means visitors are not allowed into the park.

The park is open from mid-April to the end of October and closes from November. This is because the region experiences intense winter weather.

The park being closed in the winter months results in a low number of visitors annually, making it one of the least visited national parks in the United States.

They are not fully operational throughout the year. However, the national park gets many repeat visitors.

11 Fascinating Facts About Isle Royale National Park
Isle Royale National Park – Courtesy of Wikimedia Commons

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Why Trust Us About Isle Royale National Park?


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We’ve worked with the National Park Service, the Department of Interior, USDA, and the U.S. Forest Service for years creating films on important places and issues. Our work has been featured in leading publications all over the world and even some people outside of our immediate family call us experts on the national parks.

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Map Of Isle Royale National Park


List Of Isle Royale National Park Facts

  1. Isle Royale Had An Active Sea-Faring Trade
  2. The Park Is Not Easily Accessible
  3. Isle Royale Is A UNESCO International Biosphere Reserve
  4. The Park Is Home To A Variety Of Creatures
  5. Isle Royale Is Made Up Of Many Islands
  6. Isle Royale Is One Of The Least Visited National Parks
  7. The Park Has A Wolf Relocation Program
  8. Isle Royale Has A History Of Deadly Fires
  9. Isle Royale Has Many Bird Species
  10. There Have More Than 25 Shipwrecks At Isle Royale
  11. The Park Closes For Winter

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