International Mountain Bike Association (IMBA) creates, enhances and preserves trail opportunities for mountain bikers worldwide. Since 1988, IMBA has been bringing out the best in mountain biking by encouraging low-impact riding, volunteer trailwork participation, cooperation among different trail user groups, and innovative trail management solutions.
Westside Trail Federation (WTF) is a group of local riders and experienced trail builders dedicated to helping design, build and support sustainable single-track freeride and downhill mountain biking trails at the Westside (Vernonia, LL Stub Stewart SP, Tillamook Forest).
Columbia Area Mountain Bike Advocates (CAMBA) was formed in June 2000 in an effort to join area cyclists into a group with which to organize and associate with government and other local clubs, essentially establishing a voice for cyclists in the Columbia River Gorge area, and beyond.
Black Rock Mountain Bike Association (BRMBA) is a 501(c)(3) IMBA member club supporting local trails and advocating for mountain biking throughout the Willamette Valley.
Evergreen Mountain Bike Alliance is Washington State's largest mountain bike advocacy and trail building group. Evergreen (formerly BBTC) creates and protects sustainable mountain biking opportunities across all of Washington.
Central Oregon Trail Alliance (COTA) is a non profit volunteer organization that works in conjunction with the USFS, BLM and other land managers to build and maintain trails in Central Oregon.
Disciples of Dirt The Disciples of Dirt mountain bike club of Eugene, Oregon is dedicated to land access, trailmaintenance, and fun!
Hood River Area Trail Stewards (HRATS) is a volunteer based non-profit IMBA Chapter Organization (International Mountain Biking Association) made up of cycling enthusiasts that are focused on engaging and uniting the local cycling community in order to channel enthusiasm to create, enhance and protect the riding opportunities in the greater Hood River area, to include both Oregon and Washington with a focus on trail advocacy within a 30 mile radius of Hood River.Trail Advocacy and Conservation Groups
Forest Park Conservancy The mission of The Forest Park Conservancy is to maintain, preserve, protect, and improve the City of Portland's Forest Park so as to enhance its value as an irreplaceable asset for wildlife habitat and for the use and enjoyment of the public.
Friends of Gateway Green Gateway Green is envisioned as a 35-acre open space and recreation area, as well as a working test site for "green" innovation.
The Intertwine The Intertwine is our connected network of parks, trails and natural areas in the Portland, Oregon and Vancouver, Washington region.
Urban Greenspaces Institute To Ensure that parks, regional trail systems, greenways and greenspaces are integrated with the built environment in the Portland-Vancouver metropolitan region; and to promote urban greenspace efforts nationally and internationally.
Barlow Trail Association The Barlow Trail Association's Mission is to tie together the Villages at Mt. Hood, Brightwood to Government Camp and the Mt Hood and regional recreation resources, with family walking, biking, hiking, and equestrian community trails and recreation resources to improve quality of life and enhance the economic development of the area.
Columbia Gorge Off-Road Association To advance better relationships between motorized trailriders, other outdoor enthusiasts, and the general public. To provide social and recreational activities for its membership, and to develop and maintain off-road motorized recreational trail riding areas.