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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

Preserving Nature 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.

Stories in Pennsylvania

A person looks over a misty vista toward mountains.

George Gress: Nature’s Renaissance Man

Over his remarkable 31-plus-year career with TNC, George Gress has embodied the spirit of what it means to be a land steward. As he retires, his legacy will live on.

A view down of a farm house surrounded by green and brown fields.

Wetland, Floodplain & Stream Restoration Aids Pennsylvania Farmers

Learn how The Nature Conservancy and its partners are applying science-based conservation practices in the Chesapeake Bay watershed.

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

Best Birding Locations in Pennsylvania

Pennsylvania offers some of the best places for birding in the country. Learn about sites across both PA and DE to see unique birds.

A view of forest with the orange glow of a setting sun shining through the trees.

Appalachian Forests

Join us in our mission to safeguard one of the world's most resilient landscapes. Discover how our collaboration with private landowners is making a difference.

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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.

Volunteer With Us

There is more than one way to volunteer for TNC in Pennsylvania. Find upcoming events and ongoing volunteer opportunities.

Latest Newsletter

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

Keep Learning

Explore our publications and watch highlights from our presentations and webinars.

Research/Special Requests on TNC Preserves

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

A clear path cuts through an uphill mountain surrounded by red fall colored brush on either side of the path.
Stone Henge Trail A view from the ~1.3 mile Stone Henge Trail at Dick & Nancy Eales Preserve © Melisa Soysal/TNC

Conservation Update

2024, A Year of Conservation Results.

2024 was an important year for conservation. Explore some of our conservation wins and projects in Pennsylvania.

Explore Our 2024 Results
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Upcoming Events

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A view of mountain tops stretching across the horizon covered in green and orange trees.
West Branch Forest Preserve The vista from The Nature Conservancy's West Branch Forest Preserve in Pennsylvania. © George C. Gress

Places We Protect

Places We Protect

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

Find a Preserve Near You
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