More than 40 million people depend on the Colorado River Basin for their water
including 30 federally recognized Tribal Nations. 150 threatened species depend on the river for their survival, and 70% of native fish species in the basin are found nowhere else on Earth.
How Rivers Connect Us
From the mighty Colorado River to the Pacific Northwest’s vast Columbia River Basin, explore our new interactive map and discover how coordinated action creates positive change for rivers across the western U.S. and Canada.

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Our Colorado River
More than 40 million people rely on the Colorado River for water, food, recreation and energy. Stand with us to protect this iconic lifeline of the west.
The Nature Conservancy Announces New Colorado River Program Director
Celene Hawkins brings extensive knowledge of the Colorado River Basin to the role, as well as more than 15 years of working with Tribal Nations and water law.








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Discover Different Approaches, State by State
Our Work in the Basin Discover projects we're working on throughout Arizona, Colorado, Nevada, New Mexico, Utah and Mexico.
Add a Podcast to Your Queue
In partnership with Mountain & Prairie, we're bringing you exclusive conservation stories, updates, advice and more from TNC leaders and host Ed Roberson.
Support our work
The Colorado River is one of the hardest working rivers in the West. The Nature Conservancy is working hard across the entire Colorado River Basin to protect this amazing river and resource.