The National Park Service manages 63 national parks. Only one is always closed during the winter, in part because it is so remote.
National parks can be ideal places to escape to during the colder months, from the sunbaked cliffs of Zion to the lush swamps of the Everglades.
The frigid waters of Lake Superior near the Canadian border, however, are a different story for many. Here, the winters are harsh and snowy, nighttime lows fall well below zero, and the wilderness island designated as Isle Royale National Park in Michigan is almost entirely shut down to human activity from November to mid-April.
The National Park Service maintains these annual closures because of the extreme winter weather and for the safety and protection of visitors. Other remote parks with freezing temperatures continue to allow visitors in the off-season — albeit with limited facilities and services. Gates of the Arctic, for example, where temperatures regularly get below -50 F; Denali, which set a record 69 inches of snow on the ground Feb. 19, 2022; and Mount Rainier, where 93.5 feet of snow once fell in a single winter, all have at least some areas that hardy visitors can still access during the coldest months.
Unlike these larger parks with open terrain, however, visitors can only get to Isle Royale by ferry, seaplane or private boat, and extreme weather conditions make these modes of transit more perilous. The park consists of one large island surrounded by over 450 smaller islands. It encompasses 850 square miles, including submerged land that extends more than four miles out into Lake Superior.
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Fortunately, it’s worth waiting until the weather is (relatively) warmer to explore this wilderness gem. Isle Royale is one of the largest lake islands in the world, with very few human-made structures and roads, but plenty of fragrant pine forests, craggy rocks and quiet shorelines. Visitors can trade the sounds of traffic for the calls of loons and sandhill cranes and enjoy chance encounters with moose and other wildlife. Historic lighthouses and cabins dot the coasts, and the island’s picturesque ridges are streaked in the coppery colors of the park’s 600-plus lichen species.
Be sure to plan your travel and reserve a campsite, lodge room or camper cabin well in advance. Though it never feels crowded on the island, designated places to sleep — and anything remotely qualifying as an amenity — are in very limited supply.
Visitors might see scientists in the park, as they monitor water quality, forest vegetation and animal populations. Isle Royale is the site of the longest-running predator-prey study in the world, in which university researchers have studied the relationships between wolves, the park’s apex predator, with moose and beaver. The species’ populations have fluctuated over time, but their existence on this remote island interconnects and depends on internal factors such as vegetation and disease, as well as external factors such as weather and climate change.
Note that Isle Royale is the only site designated as a national park that closes in the winter, though a handful of sites with other designations also close seasonally, such as the John Fitzgerald Kennedy National Historic Site in Massachusetts and the Thaddeus Kosciuszko National Memorial in Pennsylvania. Be sure to check a park site’s website before heading there for a visit.
Thinking of heading to other parks this winter?
The Park Service’s “Be Winter Ready for Your Adventure” webpage shares lots of useful tips for being prepared so winter weather doesn’t take you by surprise.
This is an update to a previously published story.
About the author
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Jennifer Errick Associate Director of Digital Storytelling
Jennifer co-produces NPCA's podcast, The Secret Lives of Parks, and writes and edits a wide variety of online content. She has won multiple awards for her audio storytelling.