Dolores River Basin

The Dolores River Basin stretches from western Colorado to New Mexico and has many wildlands, such as the treasured San Juan Mountains.

The Wilderness Society is working to protect more than 60,000 acres of wild mountains and rivers and to keep energy development out of the wildest places in the area. 

Why the Dolores River Basin

The Dolores River Basin and the San Juan Mountains are some of the wildest places in the Rocky Mountain region. It has stunning scenery, important wildlife habitat and some of the best recreation in the west. 

Work we’re doing

We work to make sure that the wild parts of the Dolores River Basin stay wild. 


Protecting the Dolores River Basin isn’t something we can do alone. We work with a coalition of local groups and communities to protect this slice of the Rocky Mountains.


  • Anastasia Greene

    “Secretary Jewell is on the right track. The plan to pursue cancellation of this oil and gas lease sets the stage for getting rid of the remaining leases in the Badger-Two Medicine region,” said Jamie Williams, president of The Wilderness Society. “This is not only an ecologically invaluable link between Glacier National Park and the Bob Marshall Wilderness Area, it’s a sacred place for the Blackfeet Nation and a stronghold for the Blackfeet culture.

  • Michael Reinemer

    “In this season of Thanksgiving, we are grateful to have a bipartisan group of Senators at the grown-ups’ table showing real leadership by advancing legislation to permanently reauthorize the Land and Water Conservation Fund, in S. 556,” said Alan Rowsome, Senior Director of Government Relations for Lands at The Wilderness Society.  “That contrasts with Rep.

  • Michael Reinemer

    Today federal legislation to protect and enhance the Yakima River basin’s fisheries, ecosystem and water supply was passed by the Senate Energy and Natural Resources Committee.