The IATC has long opposed the use of hiker trails by mountain bikes because of the speed differences. This has led to bad blood with certain bikers who feel free to use trails despite their posted uses or unsuitability. Hence the previous non-candid one-star review. To learn what the club is really about, and why many are glad to donate their money and time, visit the website. I am a former board member, current volunteer.
This organization is essentially a private club of elderly locals who do everything possible to prevent others from using the public lands and trails surrounding Issaquah, WA. They're an obstacle to any public agency or user group that wants to build new trail, yet the group has a long history of illegal trail building. They're a detriment to public lands and trails, and would be an extremely poor candidate to receive donations or grants. It's a shame, as their obstructionism has slowed progress on so many fronts. Fortunately the group is shrinking/dying off at a good pace.
Review from Guidestar