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United States

Pennsylvania

A view of the sun setting over the Delaware River as it meanders between two mountain ranges.
The Delaware River Flowing through Pennsylvania’s Pocono mountains, the Delaware River Basin provides high-quality drinking water to more than 13 million people across four states. © Lorraine Boogich/iStock
The sun sets behind a small mountain hump containing green tree tops.
Cove Mountain This 14-mile corridor protects land along the Kittatinny Ridge, one of Pennsylvania’s most treasured landscapes. © Melisa Soysal/TNC

Our Priority Areas in Pennsylvania

For decades, TNC has worked within Pennsylvania to protect the rivers, forests, farms and iconic nature in the Commonwealth. We continue to pursue strategies that will help ensure the vitality of Pennsylvania's people, places and wildlife for generations to come.

How We Make a Difference in Pennsylvania

From shaping climate policy to restoring habitats, we’re taking action to protect Pennsylvania’s lands, waters and wildlife.

Stories of Impact

A view of snow falling on trees.

2025 Review: A Year of Conservation Results

A view from the forest floor looking up into tree tops covered in orange leaves against a blue sky.

Not Just Tree Huggers: A Tale of Two Trustees

Three yellow birds sit on the bare branches of a tree against a blue sky.

Best Birding Locations in Pennsylvania

A farmer in a hat stands in a field looking to crops on the left.

How Wetland, Floodplain & Stream Restoration Aids Farmers

Several people stand in the middle of a forest surrounded by fall foliage, looking off into the distance.

6 Best Hiking & Outdoor Recreation Opportunities Near You

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A dirt path winds through dense autumn-colored shrubs under a dramatic sky lit with orange and blue clouds.
Dick & Nancy Eales Preserve Our Eales Preserve at Moosic Mountain is an excellent place for birding in the fall. © Melisa Soysal/TNC

Explore Our Nature Preserves

From dense forests to flowing rivers, explore our nature preserves across the state of Pennsylvania.

Find a Preserve Near You
Several people hold shovels and dig into a grassy patch.
Tree Planting Day Volunteers plant fruit trees with Friends Rehabilitation Program in Philadelphia, October 2019. © Kat Kendon/Kendon Photography

Volunteer With Us

Whether you join a workday or take on an ongoing role, there are many ways to volunteer with us in Pennsylvania.

Explore Opportunities

More from Pennsylvania

Learn more about our team and TNC's work across Pennsylvania

Our Staff: Experts in Action

Meet some of the people who are working to create lasting solutions in Pennsylvania and around the world.

Contact Us

Contact our team of 50+ staff members dedicated to making a difference in Pennsylvania.

Latest Newsletter

Download our latest newsletter featured in the Summer 2025 Nature Conservancy magazine.

Research/Special Requests on TNC Preserves

Click here to apply for permission to conduct research or another special activity on a TNC preserve.

Hunting Information

Learn about which Pennsylvania preserves are open for hunting.

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A river flowing surrounded by lush greenery.
Muncy Creek Muncy Creek in Lycoming Co is a part of the Susquehanna River drainage basin and flows into the Chesapeake Bay. © Nicholas Tonelli