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The Nature Conservancy in Delaware

Several horseshoe crabs pile on top of one another in shallow water.
Pileup Native horseshoe crabs along the bay at Slaughter Beach, Delaware. © Deb Felmey

2024 Controlled Burn Season

Controlled burning season is underway in Delaware through May 31st. Controlled burning encourages the growth of native vegetation, increases biodiversity and minimizes the spread of invasive species, and recycles nutrients back into the soil. Learn more about the benefits of fire. Learn more about how the use of fire benefits nature.

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Preserving Nature in Delaware

Since 1990, TNC has worked with government agencies, private corporations, conservation organizations and our members in Delaware to protect the places on which people and wildlife depend.

Stories in Delaware

A wind turbine sits in the middle of a blue ocean with a white square frame around its body.

Wind Power: A Window into Delaware’s Clean, Bright Future

Offshore wind offers an opportunity to bring about an era of 100% renewable energy and a greener, cleaner and more prosperous future.

Several monarch butterflies perch on a bush with yellow flowers.

Women in Conservation

Representation matters for women, for conservation, and for our future. Meet a few of the incredible women who are working in Delaware with TNC.

A black woodpecker with a red head looks into a hole of a tree where two smaller woodpeckers poke their heads out.

Best Birding Locations in Delaware

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

A skyline sits in front of a body of water.

Protecting Freshwater in Delaware & Pennsylvania

Freshwater ecosystems connect us all. Protecting our rivers, streams and wetlands is essential for maintaining clean drinking water.

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Upcoming Events

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More from Delaware

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

Our Staff: Experts in Action

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

Contact Us

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

Volunteer With Us

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

Latest Newsletter

Download our latest newsletter featured in the Summer 2024 Nature Conservancy magazine.

Keep Learning

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

A yellow bird with black markings on its wings and head sits on a brown plant.
Goldfinch A Goldfinch at Bombay Hook National Wildlife Refuge © Deb Felmey

Conservation Update

PA/DE 2023 Impact Report

2023 was an important year for conservation. Explore some of our projects, events and conservation wins that took place.

Explore the Impact Report
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A sun sets over a body of water creating an orange reflection.
Milford Neck Preserve View of the marsh at the preserve along the Delaware Bay. © John Hinkson / TNC

Places We Protect

Places We Protect

From forests to the coastline, explore our nature preserves across the state of Delaware.

Find a Preserve Near You
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A river flowing surrounded by lush greenery.
Milford Neck Preserve A view of the Delaware Bay from our Milford Neck Preserve © John Hinkson/TNC