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Wisconsin

A lake lagoon with greenery around it and running through it under a blue sunny sky.
Mauthe Lake From sunny lakesides to deeply shaded old-growth forests, the hottest months of the year bring out some of the most amazing nature sights in Wisconsin. © Lisa Bumann/TNC Photo Contest 2021

Make a Difference in Wisconsin

For 60 years, people like you have helped The Nature Conservancy protect more than 242,700 acres of Wisconsin’s quiet lakes, Northwoods forests, winding rivers and sun-kissed prairies. We’re building on that legacy and bringing people together to help solve today’s biggest conservation challenges from climate change and habitat loss to protecting clean water. Together we’re stronger!

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Latest News

A close-up of the four-petaled purple blooms of Dame's Rocket.

Weeds at Their Worst: Combating Invasive Species

Invasive species damage Wisconsin’s lands and waters and make our lives miserable, but we can do something about them.

Last updated Jun 20, 2023

A peppered jumping spider on a flower.

Peculiar Pollinators in the Midwest

We all know the honeybees that pollinate our flowers in the Midwest. But did you know there are some other, shall we say, peculiar pollinators? Learn about the importance of lesser-known pollinators.

May 11, 2023

A pale blue sky with clouds is reflected in a still lake that is bordered by trees.

Our History in Wisconsin

For more than 60 years, TNC has been working in Wisconsin to conserve and protect the land and waters of our state.

Jun 26, 2023

A field of wildflowers under a blue sky.

Wisconsin Nature through the Seasons

From expansive wetlands and tranquil lakes to rolling hills and sandy prairies, Wisconsin has a bounty of beautiful natural areas you can visit throughout the year.

Last updated May 31, 2023

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Aerial view of a red tractor cutting long, curving rows into a broad green field.

Feature

Wisconsin Farmers Leading on Conservation

Sharing lessons learned to keep soil healthy, water clean and farms resilient.

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See the Places We Protect in Your Community

From lakeshores and wetlands to woods and prairies, TNC is protecting more than 242,700 acres of Wisconsin's most beautiful and biodiverse areas. Learn more about our preserves and plan your visit today!

EXPLORE OUR PRESERVES
A stream running through a forest in summer.
Ferns growing in a forest in summer.
Trees in autumn color around the shore of Lulu Lake.
A blue sky with white clouds is reflected on the still waters of Mink River with green trees on the far side of the lake.
Grasslands with blooming blazing star and other prairie flowers gradually turn into rolling hills in the background against a blue sky.
A stream running through a forest in summer.

Baxter's Hollow: Otter Creek flows through the forest among moss and fern-covered rocks at Baxter's Hollow in Wisconsin. © Steven S. Meyer

Ferns growing in a forest in summer.

Catherine Wolter Wilderness Area: At this preserve you'll be able to hike through a portion of Wisconsin's North Woods. © Jim Schumaker

Trees in autumn color around the shore of Lulu Lake.

LuLu Lake Preserve: Created by glaciers, Lulu Lake and its watershed comprise one of Wisconsin's highest quality natural areas. © Clint Farlinger

A blue sky with white clouds is reflected on the still waters of Mink River with green trees on the far side of the lake.

Mink River Preserve: A leisurely canoe trip on Mink River in Door County provides a great opportunity for bird watching. © Jason Whalen

Grasslands with blooming blazing star and other prairie flowers gradually turn into rolling hills in the background against a blue sky.

Spring Green Preserve: Home to prickly pear cactus, sand blows and lizards, the sandy prairie at Spring Green Preserve is sometimes called Wisconsin’s Desert. © John Harrington

A young person holds a white bag and kneels in a field to pull weeds.
Pulling invasive plants: A student volunteer pulls up garlic mustard. © Lainet Garcia-Rivera/TNC
Yellow warbler perched on underside of tree.

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