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About IMBA U.S.

The International Mountain Bicycling Association (IMBA) is a 501(c)3 non-profit educational association.

MISSION: To create, enhance and protect great places to ride mountain bikes.

VISION: To engage all mountain bikers to stand up for trails.

Since 1988, IMBA has been bringing out the best in mountain biking by encouraging low-impact riding, volunteer trail work participation, cooperation among different trail user groups, grassroots advocacy and innovative trail management solutions. IMBA's staff, chapters, clubs and members work to benefit the entire mountain bike community.

  • We create a powerful voice for trails, public lands and management policies that welcome bikes.
  • We advocate for mountain bike access and acceptance nationwide. 
  • We build sustainable trails and bike facilities to make mountain biking more accessible.
  • We teach environmentally responsible trail building and trail etiquette practices.
  • We inspire more people to experience the outdoors on bicycles.
  • We educate bike groups on how to organize and make mountain biking better at the local level.

Here's what we do, how you help and why we're so thankful!


IMBA's worldwide network includes 40,000+ individual members, 200+ IMBA Chapters, 400+ clubs and volunteer bike patrols, 200+ corporate partners, 700+ retail shops and over 100,000+ subscribers to our messaging. IMBA's members live in all 50 U.S. states, most Canadian provinces and in 30 other countries. Joining your local IMBA chapter is the most effective way for you to build and maintain the amazing trails you love to ride. Your membership dues support your local chapter's work, and IMBA's efforts nationwide.

IMBA's U.S and international headquarters in the United States are located in Boulder, Colorado. Domestically, we currently have more than 50 full-time staff members, including region directors located in the Atlantic, California-Hawaii, Colorado-Wyoming, Great Lakes, Midwest, Pacific Northwest, South Central, Southeast (SORBA) and Southwest regions as well as trail building professionals located across the country. IMBA represents our members, supports our chapters and our work benefits the mountain biking community. 

This website primarily serves IMBA's programs in the U.S., but you can also find reports from IMBA affiliates around the globe. Visit our international programs page for more about IMBA's work outside the U.S., including IMBA Europe and IMBA Canada, and the programs page where the trail planning and design services highlights the offerings our Trail Solutions division provides around the world.

 The U.S. Internal Revenue Service recognizes IMBA as a tax-exempt, 501(c)(3) charitable organization; your donations are tax-deductible. IMBA's tax identification number is 47-1254119.

IMBA has received a 3-star rating from Charity Navigator for having high program allocation and low fundraising costs in the field from America's largest and most-utilized independent evaluator of charities. When you join or support us, your money goes where it matters.

You can read IMBA's 2015 Annual Report and IMBA's latest 990 IRS filing can be found here.