Board of Directors
LUTHER PROPST, Board Chair
Luther Propst founded the Sonoran Institute in 1991 and served as executive director until 2012. Propst serves on the boards of the George B. Storer Foundation, Outdoor Alliance, International Mountain Bicycling Association, Jackson Hole Conservation Alliance, and the Center for Jackson Hole (the SHIFT Festival). Propst now works in a freelance capacity to produce conservation and smart growth and strengthen conservation organizations.
Blackwood leads the American Canoe Association, a national nonprofit organization that serves the paddling community both within and outside the U.S. Currently, Blackwood sits on the National Park Service’s Advisory Committee for the Captain John Smith Trail and served as an economic development volunteer in Honduras for the Peace Corps.
Michael is a consultant in Seattle specializing in communications, social responsibility and philanthropy. He is the former vice president of public affairs for REI. At REI he oversaw corporate communications, government and community affairs and sustainability strategy for the company. Collins has served as a board member and past president of the Washington Wildlife and Recreation Coalition, the federal advisory committee for the 21st Century Conservation Service Corps, and the advisory committee for the Western Governors' Association "Get Out West!" initiative.
Martinique is the former Executive Director of The Mountaineers, a Pacific Northwest located organization geared towards educating and connecting people to the outdoors. She has over a decade of management experience in both the for-profit and non-profit sector. She has worked with a variety of outdoor-oriented organizations, most notably the Appalachian Mountain Club in Boston and L.L. Bean in Maine. Martinique holds an undergraduate degree from Dartmouth College and an MBA from Harvard Business School.
Joan May is serving her third term as a County Commissioner in San Miguel County, Colorado. She is the "local elected official" representative on the Federal Advisory Committee for National Forest Planning. Prior to public office, Joan was Executive Director of the environmental conservation organization Sheep Mountain Alliance in Telluride, CO. She serves on many boards.
A seasoned conservationist, backcountry ski guide and outdoor writer, Mark Menlove has served since 2004 as Executive Director of Winter Wildlands Alliance, a national nonprofit organization working to protect winter ecosystems and ensure opportunities for quality human-powered snowsports experiences on public lands. Menlove is the former president of the Utah Ski Association and has held communications positions with the U.S. Ski Team and the 2002 Winter Olympic Games.
Peter is the founder and long-time CEO/President of Black Diamond Equipment (1989-2015) and is now an advisor and brand advocate for the company. Peter serves as Chairman of the Board of the Salt Lake City Branch of the Federal Reserve Bank of San Francisco; as a Director for the Zions Bank Corp, Brooklyn Boulders, Utah’s Mountain Accord, theConservation Alliance, the American Alpine Club as well as an advisor to the ED’s of several Utah based conservation/environmental NGO’s where he makes the economic case for the integral role well stewarded public lands play in the vibrancy of our American economy.
Erik Murdock is the Policy Director at the Access Fund. An avid, well-traveled climber, cyclist and skier, Erik has a MS in Geology and a PhD in Natural Resource Studies with a minor in Environmental Psychology. He has worked for the University of Arizona, the Bureau of Land Management, the National Oceanic and Atmospheric Administration, the USDA Forest Service and the National Park Service. Erik, along with his wife and daughter, live in Estes Park, Colorado.
Mark is the Executive Director for American Whitewater, the primary advocate for the preservation and protection of whitewater rivers throughout the United States connecting the interests of human-powered recreational river users with ecological and science-based data to restore and protect rivers. Singleton previously led the marketing efforts of Nantahala Outdoor Center as Marketing Vice President and is also a past board member of the Outdoor Industry Association.
Katherine Tsai is an attorney at eBay Inc., where she drives results and manages risk for her business partners. She’s an avid rock climber and hiker. Katherine co-chairs eBay’s Bay Area Impact Team and serves on the D&I Steering Committee for the eBay Americas team. She also serves on the boards of Outdoor Alliance, Sustainable Learning, and Zomppa.
A legendary racer, revered local advocate and an inspiring leader in the mountain bike world, Dave Wiens joined IMBA’s Board of Directors in January 2016, was elected Chairman in November 2016, and was hired as IMBA's Executive Director in February 2017.