Geoffrey M. Williamson

Special Counsel

Geoffrey M. Williamson

Special Counsel


Legal Assistant

Calli George


J.D., University of Michigan Law School, 2004

B.A., College of William and Mary, 1999


Colorado, 2004

U.S. District Court, District of Colorado, 2006

U.S. Tenth Circuit Court of Appeals, 2012

U.S. Ninth Circuit Court of Appeals, 2012

Geoff Williamson represents a wide variety of public and private clients in water, environmental, and land use matters. His work includes water rights litigation in Colorado’s water courts and advising clients on water and environmental issues arising out of real estate transactions. Geoff also has experience in matters across the western U.S. involving federal environmental statutes such as the Endangered Species Act and NEPA. In addition to his water and environmental work, Geoff has represented public and private companies of all sizes in breach of contract and other business disputes. Geoff began practicing law at BHGR in 2005 before spending time working at a national law firm based in Denver and then a boutique water law firm in Boulder.

Professional Associations

American Bar Association

Boulder County Bar Association

Colorado Bar Association


Speaker, “Recent Developments in Colorado Water Law,” Water Rights in Colorado Conference, National Business Institute (July 2013)

Lauren E. Schmidt & Geoffrey M. Williamson, “Recent Developments in Climate Change Law,” 37 The Colorado Lawyer 63 (November 2008)

Contributor, Colorado Energy News, an online publication covering Colorado’s energy industry (2010 to 2011)

Editor and Contributor, FOREcast: Funding Opportunities for Renewable Energy, a quarterly newsletter published by Brownstein Hyatt Farber Schreck, LLP (2009 to 2010)

Community Involvement

Volunteer Coach, Bear Creek Elementary School Cross Country and Track Program (2015 to 2018)

Colorado Cancer Research Program, Board of Trustees (2010 to 2017)

CO-LABS, Board of Directors (2014 to 2016)

Metro Volunteer Lawyers, Pro Bono Volunteer (2009 to 2014)

Leadership Boulder Country, Class of 2012

Boulder County Bar Association, New & Young Lawyers Section Co-Chair (2007 to 2009)