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United States

New Hampshire

A small waterfall plunges down the side of a rock at TNC's Surry Mountain Preserve.
Sculptured Rocks A waterfall flows along Sculptured Rocks Road in Groton, New Hampshire near Kimball Hill Forest. © Jeff Lougee/The Nature Conservancy

Make a Difference in New Hampshire

The mission of The Nature Conservancy is to conserve the lands and waters on which all life depends. Since 1961, we've been working in New Hampshire to do just that. Together with partners, local landowners and the support of members like you, we have helped to protect nearly 300,000 acres and 680 miles of rivers and streams in the Granite State.

Stand Up for Nature

Winter Solstice Soirée

December 18, 2025 | 05:00 PM - 08:00 PM

Come light up the night with The Nature Conservancy in New Hampshire on December 18th at the McAuliffe-Shepard Discovery Center!

Join Us
Stars shine in a night sky.
The view of the Merrimack River upstream from the Granite Street Bridge in Manchester, NH.

A Shared Vision for the Merrimack River

See how local communities are working with nature to shape a healthier, more resilient Merrimack River—where real stories are inspiring real solutions.

Let's Go!

What Does It Mean to Steward Land and Manage for Resiliency?

Successful conservation requires science-based management and stewardship. Learn how we’re ensuring a healthy future for New Hampshire's lands.

Dig In
People in hard hats and hand tools working on a trail in the forest.
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Climate Action in New Hampshire

TNC is taking meaningful action to address the impacts of climate change on the Granite State.

Dig In
A woman and a man plant a tree.
An overhead view of a dam on a river in the fall.

Four Ways to Conserve New Hampshire’s Waters for People and Nature

Our Freshwater Program is reconnecting waterways, restoring floodplains, improving river flows and helping ensure clean water for all.

Explore

Visit a Nature Preserve Today!

The Nature Conservancy owns and manages 31 preserves around the Granite State, most of which are open for you to explore and enjoy.

Explore
A bluebird on a branch that has pink flowers.
Eastern bluebird An Eastern bluebird rests on a branch in Dover, New Hampshire. © Jonathan Winslow

Latest News

An illustration shows a park with diverse users, including someone in a wheelchair and another one with a white cane.

Trails For All

The All Persons Trail at Manchester Cedar Swamp is a shining example of TNC's work to remove barriers to nature.

A man in orange waders holding a clump of oysters.

SOAR: Supporting Oyster Aquaculture and Restoration

This program is designed to help oyster farmers impacted by COVID-19 by purchasing surplus oysters and placing them on nearby restored reefs.

Hand-drawn image of The Nature Conservancy logo, a lady bug, purple finch, white-tailed deer, white birch tree and purple lilac.

TNC in Color

Get out your crayons, markers or colored pencils! Our staff drew their favorite preserves, and we've put them together for you to color.

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