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United States

Oklahoma

A scrubby landscape and hills lay under the emerging stars as the sun sets at Black Mesa State Park and Nature Preserve.
Under the Night Sky Black Mesa State Park and Nature Preserve is one of only a few dark sky parks in Oklahoma. © Going West Productions

Make a Difference in Oklahoma

The Nature Conservancy's mission is to preserve plants, animals and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive. We’ve been working in Oklahoma to do just that.

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Two bison calves interact on the prairie.

Blog

Spring on the Prairie: Lots to Explore at Tallgrass Prairie Preserve

Explore 40,000 acres of pristine grasslands and the biodiversity they support in Pawhuska, Oklahoma.

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Two men look out across the Flint Hills of Kansas.
Surveying the Prairie Flint Hills Initiative Director Tony Capizzo looks across the vast Flint Hills of Kansas. © Tony Capizzo / TNC

Q&A with Tony Capizzo: Flint Hills Initiative Director

The Flint Hills of Oklahoma and Kansas nurture some of the greatest biological diversity in the world. TNC's Tony Capizzo is leading the charge to protect and preserve this incredible ecoregion.

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A creek winds across rolling hills, dotted by trees. A blue sky can be seen in the distance.

Conservation Update

Introducing Sand Creek Ranch

The Nature Conservancy in Oklahoma has acquired Sand Creek Ranch, a 5,000-acre property located in the Red Hills of Harper County.

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Conservation in Oklahoma

Rolling hills frame a tree-lined canyon at Four Canyon Preserve.

20 Years of Conservation at Four Canyon Preserve

Explore twenty years of conservation in action at Western Oklahoma's Four Canyon Preserve with Preserve Manager Chris Hise.

The cabin of John Joseph Mathews frames the Pawhuska night sky.

Historic Mathews Cabin

The cabin of famed Osage author John Joseph Mathews now sits on the Joseph H. Williams Tallgrass Prairie Preserve protecting history for future generations.

The sun rises over TNC's Pearl Jackson Crosstimbers Preserve, located near Tulsa.

Pearl Jackson Crosstimbers Preserve

The Pearl Jackson Crosstimbers Preserve, located near Sapulpa, is a pristine specimen of the crosstimbers ecoregion, featuring open tallgrass prairie and woodlands of post and blackjack oak.

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Hikers walking along a ridge at the Four Canyon Preserve.
Hiking at Four Canyon Preserve Hikers at Four Canyon Preserve © Ryan White Photography
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2024 Oklahoma Impact Report

There's more to explore! Download our 2024 Impact Report to see conservation successes from the past year.

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