Kevin Lewis, Executive Director (

Kevin joined IRU in 2004 as our Conservation Director and moved into the Executive Director role in 2016. A lifelong river runner, Kevin is passionate about protecting Idaho’s rivers and the species that depend on them. When not in the office Kevin can be found at the oars of his cataraft on the North Fork of the Payette.




Anna Buschbacher, Development Director (

Anna leads IRU’s fundraising and business development efforts.  As a native Idahoan she has strong community ties and a background in non-profit management blended with a love for Idaho’s great outdoors.  When she's not working to inspire the community about IRU you'll find her rafting, paddle boarding or camping with her family.



Rickey Minder, Membership Director (

Rickey employs her considerable creative talents to help build interpretive and development materials that promote IRU and its mission. She also coordinates IRU's membership and fundraising events. When not doing that, you can find her in Idaho’s backcountry playing in the rivers that had a hand in raising her.

Danielle Warnke, Education and Outreach Coordinator (

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Danielle graduated in 2017 from Boise State University with an environmental studies degree and sustainability minor. Danielle’s goal is to make environmental conservation accessible for everyone by educating a wide range of stakeholders on conscious decisions that we all can make to take action and protect our wild rivers and species in Idaho.

Stephen Pfeiffer, Conservation Associate (

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Stephen advocates for the protection of Idaho’s special river systems and the unique species that call them home. He has a background in science and has traveled across the West conducting fieldwork along some of its iconic rivers. He graduated from Colorado State University in 2018, and is excited to once again be in close proximity to the mountains and rivers he grew up exploring.