2015 Calendar

2015 SI Calendar Cover


2015 Calendar Available

Limited edition 2015 Sonoran Institute Calendar. FREE while they last.

Contact us for a copy

Delta Update Report

Francisco at Morelos Dam


Initial Progress Report

Research shows that the historic pulse flow into the Colorado River Delta was a success.

New Report

Bear photo 2 - cropped


Highways and Wildlife - Montana

How can we better protect vital wildlife corridors as population and housing grows?

Visit Our Sister Sites

Season's Greetings

Arizona snow


Season's Greetings

May all the joys of the holiday season be yours!

Read our holiday greeting

New Report

Living River 2014 cover for web -homepage

A Living River - Arizona

A new report charts the health of the Lower Santa Cruz River in Arizona.

Find out more


Stephanie Sklar headshot for web - 10072014




Stephanie Sklar is our New CEO

The Sonoran Institute Board of Directors has selected Stephanie Sklar as its new chief executive officer (CEO). Stephanie will join the Institute on October 13, 2014

Read the news release

Annual Report


The Power of Connections

Connecting. It is what distinguishes our unique and successful approach to conservation and community development in the West.

Read our 2013 Annual Report.

Where We Work

Arizona California Colorado Idaho Mexico - Delta Montana Westwide Work Wyoming

Latest News

December 18, 2014
We are looking to protect and preserve more than 60,000 acres of pristine Sonoran Desert and mountains just West of Phoenix. Find out more about our White Tank Mountains Conservancy effort

December 12, 2014
The pulse flow was a success! According to a new progress report release by the US and Mexico governments. Read the update

December 10, 2014
In 2014, we made the seemingly impossible happen, with major accomplishments from Mexico to Montana. Find out the details. Donate today

December 9, 2014
Adapt and reuse. Ten transformed projects highlighted in this Community Builder's article by our own John Lavey. Read it today

December 4, 2014
A new quarterly edition of the e-newsletter Building Trust is out. The latest news on what's happening across the West. Read it now



Narrated by Robert Redford, Renewal captures the breathtaking and historic surge of water that was released into the Colorado River in the Spring of 2014. The new water created, once again, a river to the sea. Original music soundtrack by Halcyonaire. For more information on the efforts to save and restore life to the Delta, go to:

Sign Up & Get Social

fb  twitter  youtube  blog  email

Sign up for our newsletter: