Anne Castle is a senior fellow at the Getches-Wilkinson Center for Natural Resources, Energy, and the Environment at the University of Colorado Law School, focusing on western water issues, including Colorado River policy and management. 

From 2009 to 2014, Castle was the Assistant Secretary for Water and Science at the U.S. Department of the Interior where she oversaw water and science policy for the Department and had responsibility for the U.S. Bureau of Reclamation and the U.S. Geological Survey.  While at Interior, Castle spearheaded the Department’s efforts to provide federal leadership and funding to support sustainable water supplies, including the development of sustainable hydropower.  Castle also provided hands-on leadership on Colorado River issues.

Castle is a recovering lawyer, having practiced water law for 28 years in Denver. She serves on far too many boards and committees including the Colorado Water Trust, Western Resource Advocates, Airborne Snow Observatories, Stanford University’s Water in the West program, and the Colorado River Water and Tribes Initiative.

Castle received a Bachelor of Science degree in applied mathematics from the University of Colorado, College of Engineering. Her J.D. was also from the University of Colorado, qualifying her as a “Double Buff.”

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