The Rocky Mountains are home to some of North America’s most iconic species, such as grizzly bears, gray wolves, elk, mule deer, lynx, and wolverines.

Many of the largest remaining roadless areas in the U.S. are also found here, with high mountain peaks, thick forests and free-flowing rivers. The adjacent Great Plains were once America’s Serengeti: an endless sea of grass supporting abundant wildlife including millions of roaming bison and massive prairie dog colonies that provided food or shelter for black-footed ferrets, hawks and eagles, burrowing owls, swift fox, and dozens of other species.

Though millions of acres have been converted for crop production and human communities, large intact grasslands remain and the native wildlife, including bison, are returning to protected areas.  

Defenders' Impact

Defenders is working with public, tribal, and private landowners and managers across the Rocky Mountains and Great Plains to protect and restore the regions’ most imperiled wildlife and the large landscapes on which they depend. We are helping restore wild bison, black-footed ferrets, and wolves to new locations.

We are also restoring keystone species that create habitat for many other species, such as prairie dogs on which dozens of other species depend, and beavers which create aquatic habitat for many species that require the wetlands they create.

Our work to promote and incentivize nonlethal tools and techniques to reduce human conflict with wildlife is helping create more acceptance among people for the presence of wolves, grizzly bears, bison, beavers, and other wildlife. 

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Onahu Creek Trail - Rocky Mountain National Park
Image Credit
Alexander Ho

What We Work On

Conserve Imperiled Species

In the Rockies and Plains, we work to conserve imperiled species like grizzly bears, black-footed ferrets, wolverines, native trout, prairie wild bison and wolves.

Protect Habitat

We are defending important habitats these imperiled species depend on, from the wide open prairies to the snow-capped peaks of the mountains.

Promote Coexistence

We are implementing proven coexistence techniques that reduce conflicts between wildlife and the people who work, live and recreate in the Rocky Mountains and Great Plains.

Shape Conservation Policy

We advocate for wildlife in the Wyoming, Colorado and Montana state legislatures, and on a national level for both wildlife and our federal lands.  

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Onahu Creek Trail - Rocky Mountain National Park
Image Credit
Alexander Ho

News

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A Canada lynx runs through a snow covered ground. Only the front half of it's body shows in the photo, filling the frame. The lynx is looking up.
Washington, D.C.

Trump Administration Seeks ESA Regulatory Rollbacks, Risks Accelerating Extinction for America’s Most Vulnerable Wildlife

In a move that could accelerate the extinction crisis we face today, the Trump administration today proposed significant changes to the regulations implementing the Endangered

Where We Work