Michigan's Isle Royale Among Least-Visited National Parks In The United States

(CNN) - There are more than 420 sites in the US National Park System, but only 63 carry the headliner -- capital N, capital P -- "National Park" title.

Rock Harbor at Isle Royale, Michigan | GettyImages

The most visited of those, Great Smoky Mountains National Park in North Carolina and Tennessee, welcomed a record-setting 14 million recreation visits in 2021. Zion, Yellowstone and the Grand Canyon are other top visitor draws. See full lists of the most popular National Park Service sites here.

But what about the least-visited headliners? Parks that might be especially wild or hard to reach but also uncrowded and largely undiscovered. Let's take a peek at those.

Seven out of the 15 least-visited national parks are in Alaska.

It's no big surprise that a good chunk of the least-visited national parks are in the 49th state. Covering close to 665,000 square miles -- much of it wild and often frozen -- getting around the state can be challenging and there's a lot of wilderness to see.

The least visited of the 63 national parks, Gates of the Arctic National Park & Preserve, contains no roads or trails and visitors must fly or hike into the park, according to the National Park Service.

It's safe to say the people who accounted for its 7,362 recreation visits in 2021 were very committed to a wilderness experience. Denali National Park in Alaska, No. 13 among the least-visited parks, saw a whopping 229,521 visits by comparison.

Remote islands, a historic fort and more

The second least-visited national park couldn't be more different. National Park of American Samoa is located on a volcanic island arc in the South Pacific, where fruit bats and coral reefs are part of the ecosystem. The park logged just under 8,500 visits in 2021.

Tutuila island at the National Park of American Samoa | Credit: © Michael Runkel/Danita Delimon/Adobe Stock

Among other non-Alaska entries in the least visited parks list are North Cascades in Washington; Isle Royale in Michigan and Dry Tortugas in Florida.

The latter two are remarkably different island environments. Isle Royale is a wooded island in Lake Superior accessible by ferry or seaplane; Dry Tortugas is 70 miles west of Key West and encompasses open water and a handful of islands, including one that's home to an impressive 19th-century fort.

Nevada, South Carolina, Minnesota and Texas parks also make the 15 least-visited list.

Here's the list for a little trail-less-taken inspiration:

15 least-visited US National Parks in 2021

1. Gates of the Arctic National Park & Preserve, Alaska - 7,362 recreation visits

2. National Park of American Samoa - 8,495 recreation visits

3. Kobuk Valley National Park, Alaska - 11,540 recreation visits

4. North Cascades National Park, Washington - 17,855 recreation visits

5. Lake Clark National Park & Preserve, Alaska - 18,278 recreation visits

6. Katmai National Park & Preserve, Alaska - 24,764 recreation visits

7. Isle Royale National Park, Michigan - 25,844 recreation visits

8. Wrangell-St. Elias National Park & Preserve, Alaska - 50,189 recreation visits

9. Dry Tortugas National Park, Florida - 83,817 recreation visits

10. Glacier Bay National Park & Preserve, Alaska - 89,768 recreation visits

11. Great Basin National Park, Nevada - 144,875 recreation visits

12. Congaree National Park, South Carolina - 215,181 recreation visits

13. Denali National Park & Preserve, Alaska - 229,521 recreation visits

14. Voyageurs National Park, Minnesota - 243,042 recreation visits

15. Guadalupe Mountains National Park, Texas - 243,291 recreation visits

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