interstitialRedirectModalTitle

interstitialRedirectModalMessage

United States

Colorado

For 60 years, TNC has been working in Colorado to help ensure a livable climate​, healthy communities​ and thriving nature.

A herd of buffalo grazing on a ranch with sand dunes in the background.
Grazing Buffalo Herd A buffalo herd grazes in grasslands at the base of the Sangre de Cristo Mountains adjacent to the Great Sand Dunes National Park at Medano-Zapata Ranch in southern Colorado. © Dave Showalter
60 year anniversary logo.
60 Years in Colorado The Nature Conservancy in Colorado celebrates 60 years. © TNC

Celebrating 60 Years of Conservation in Colorado

Since 1966, we have safeguarded more than 1.5 million acres of land and more than 1,300 miles of rivers, restored iconic forests, protected species, championed key policy wins, advanced cutting-edge science, and inspired countless people to connect with nature—all made possible by your support and our shared commitment to a brighter future. 

Learn More

Our Conservation Priorities in Colorado

Discover our local conservation priorities here in Colorado as we help to accomplish TNC's ambitious 2030 goals.

Download

A State Policy Roadmap to a Faster Clean Energy Buildout

A new report from The Nature Conservancy offers a roadmap for state policymakers to accelerate the clean energy transition.

Download

Download

Year in Review

Read our 2025 Year in Review to discover how we're advancing conservation in Colorado and beyond.

Download
A vast field of scrubbrush extends toward sand dunes and mountains in the distance.
Medano-Zapata Ranch Sand dunes from Big Spring Creek at Medano-Zapata Ranch in Colorado, United States, North America. © Harold E. Malde

Our Conservation Priorities Across the West

Discover how we're collaborating with our TNC colleagues and partners across the western U.S. and Canada to advance conservation on a transformative scale.

Climate Action and Renewable Energy

We're leveraging science and policy to accelerate the clean energy transition, while also protecting connected landscapes that are essential for sustaining all life.

Colorado River Basin

Spanning 1,500 miles of river across seven U.S. states and two countries, we're working to protect this iconic lifeline of the West.

Columbia River Basin

Alongside Tribes and First Nations in the Basin who have been leading salmon recovery efforts for decades, we are advancing habitat restoration, advocating for policy solutions, and growing capacity for clean energy development to support Tribes, communities and local economies.

Emerald Edge

In the world’s largest temperate rainforest, we're pursuing community, conservation and climate action.

Grasslands

We're partnering with landowners, ranchers, Tribal communities, policymakers and other conservation organizations to ensure tangible, lasting outcomes for vulnerable grassland species and their habitat.

Indigenous-Led Conservation

As an organization, we believe that the increased authority and capacity of Indigenous Peoples to steward their lands and waters is critical for the future of healthy ecosystems and communities.

Natural Climate Solutions

Natural Climate Solutions are actions to protect, better manage and restore nature to reduce greenhouse gas emissions. Combined with cutting fossil-fuel use, boosting energy efficiency and accelerating clean-energy innovation, this offer powerful and cost-effective ways to tackle the climate crisis.

Sagebrush Sea

Across 13 U.S. states, the Sagebrush Sea hosts a complex web of native plants—sagebrush, bunchgrasses, wildflowers—that support more than 350 species of conservation concern.

Sustainable Fisheries | Bristol Bay, Alaska

Alaska’s Bristol Bay is the world’s most important wild salmon nursery. The watershed feeds wildlife, a historic commercial fishery, local and Indigenous communities, and people across the planet. Yet this globally important salmon run is in danger, and we may be facing our last chance to save it.

Western Dry Forests

Building on more than 60 years of expertise in prescribed fire and forest management, we're leading and convening efforts to restore dry forest resiliency and reduce wildfire severity throughout the West.