Wolves and the Isle Royale Environment Reports

Wolf howling along the snow-covered shoreline of Lake Superior
The National Park Service made a determination to augment the number of gray wolves on Isle Royale to restore this apex carnivore. This report summarizes project results from September 2018 to April 2020.


Wolf Reports Available for Download:

In Partnership With:

  • Multiple sailboats are docked around a large, wooden dock.
    Things to Do

    Explore all the land and water activities the park offers.

  • Bull Moose walking down a trail.

    Moose are the largest mammal on Isle Royale.

  • Wolf on the prowl through a snowy forest

    Wolves have been the apex predator on Isle Royale since 1948.

  • A pile of moose bones lay in dirt.
    Predator-Prey Relationships

    Wolves, moose, and beavers play important roles in Isle Royale's ecosystem.

  • A gray wolf sits in a crate while being relocated to Isle Royale.
    Why Relocate Wolves?

    Wolves have been a part of the island's wilderness for decades, so why relocate?

  • Gray wolf exits crate after being relocated to Isle Royale National Park.
    Wolf Relocation

    Nineteen wolves were relocated to Isle Royale from the Great Lakes Region.

Last updated: October 28, 2022

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800 East Lakeshore Drive
Houghton, MI 49931


906 482-0984

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