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Recreation · Mountain biking

International Mountain Bicycling Association

“Create, enhance, and protect great places to ride mountain bikes.”

3 comments to the agencies, 93 cents of every dollar to the work.

Home groundBoulder, CO
Founded1988
Tax status501(c)(3)
Led byDave Wiens
Find themimba.com ↗

Give to them ↗Every way to help ↓

The work

What they do

Trail building, advocacy, and education for mountain biking access on public lands. Works with USFS and BLM on trail designations and management.

Where the money went, FY2016

The work, and what it cost

General advocacy & education - The organization works to

$1.1M, 93% of spending

General advocacy & education - The organization works to create innovative trail management solutions and enhance cooperation among different trail user groups.

Including $1,140,292 granted onward, all of it to International Mountain Bicycling Association-Colorado.

Read it as they filed it
General advocacy & education - The organization works to create innovative trail management solutions and enhance cooperation among different trail user groups. The organization also educates cyclists and promotes responsible off-road cycling through the distribution of written and electronic materials, including the publication of a monthly email newsletter and regular social media content. In addition, the organization encourages low-impact riding and volunteer trail work participation.-Continued on Schedule O-

IRS Form 990 Part III, fiscal year 2016, signed under penalty of perjury.

Follow the dollar

93 cents of every dollar goes to the work

93¢
93¢ the work7¢ keeping the lights on0¢ raising the next dollar

A good sign, not a scorecard: what matters is the extremes, and this is nowhere near one.

$1,140,292 programs, $80,042 management, $0 fundraising. Form 990, FY2016.

The backers

Backed on the record by Walton Family Foundation, latest filing FY22.

The people

Who does the work

0paid staff
14volunteers last year
14board members
Dave WiensExecutive DirectorSigned the 2017 federal filing as Executive Director

Took over from Dan Brillon; the FY2016 officer table still lists them.

Robert WinstonBoard ChairVolunteer, 0.1 hrs a week, $0

Chairs the 14-member board.

Honesty note: leadership comes from each year’s federal filing, so it can run a year behind. If it’s out of date, tell us. Work at IMBA? Claim this page.

Those 14 volunteers are people who decided this ground was theirs to defend. If IMBA is fighting for your place too, the matchmaker will find your way in.

Find your way in

The filings

5 years of filings

Total revenue by fiscal year, as filed. Point at or tap the line for any year.

$2M$4M$6M$372K FY1620122016
Total revenue by fiscal year
YearRevenue
2012$4,547,421
2013$4,752,020
2014$4,824,996
2015$5,782,390
2016$372,338

From $4.5M in 2012 to $372K in FY16, with no missed filing in 5 years.

The record

On the record with the agencies

3 comments on federal decisions since 2023, each filed under the group’s own name on regulations.gov, none yet on a decision we track. Read them on regulations.gov.

Year by year

The record, in order

  1. 1988International Mountain Bicycling Association is formed.the directory; the return’s own formation year is 1989
  2. 2022First appears in Walton Family Foundation’s grants.the funder’s return
  3. 20251 comment to the Bureau of Land Management, under the group’s own name.regulations.gov
  4. 20262 comments, both to the Bureau of Land Management, under the group’s own name.regulations.gov

Green, a funder’s return. Hollow, a filing. Every row is a record we hold: 3 comments filed under its own name, 1 funder whose returns name it. Nothing here is written from memory.

Their ground

IMBA is not on our editors’ record for a threatened place yet. See every threatened place on one map, and who stands for each.

Where and what
Federal landsU.S. Forest Service · Bureau of Land Management
The family, on the record

International Mountain Bicycling Association files one related organization on its return: International Mountain Bicycling Association-Colorado (501(c)(3)). A related organization shares people or purpose; it does not share the books.

More groups in Colorado

Ways in

How to help

Stand with IMBA

The mission is theirs. The backing is yours.

Sources and methodFinancials, headcounts, and program text: IRS Form 990, FY2016 and 4 prior filings via ProPublica Nonprofit Explorer, EIN 77-0204066. Leadership and compensation: Form 990 Part VII and the return’s signature block, FY2016 filing. Grantees: Schedule I, same filing. Related organizations: Schedule R of the same filing, matched to our directory by EIN. Funders: the funders’ own returns (Schedule I and 990-PF Part XV) via ProPublica, names and years only. Agency comments: regulations.gov comments whose submitter organization is the group’s own name, each row linked to the comment itself. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.