T.H.O.R. is a non-profit volunteer organization dedicated to developing and maintaining sustainable off-road recreational trails in Eastern Nebraska and Western Iowa, through partnerships with local land managers and trail users, by providing expertise, manpower and resources.
The International Mountain Bicycling Association (IMBA) was founded in 1988 by a group of California mountain bike clubs concerned about the closure of trails to cyclists. These pioneering clubs believed that mountain biker-education programs and innovative trail management solutions should be developed and promoted. While this first wave of threatened trail access was concentrated in California, IMBA's pioneers saw that crowded trails and trail-user conflict were fast becoming worldwide recreation issues. This is why they chose "International Mountain Bicycling Association" as the organization's name.
IMBA's mission has always been to protect, create, and enhance quality trail experiences for mountain bikers worldwide. In addition, we actively promote responsible mountain biking, support volunteer trailwork, assist land managers with trail management issues, and improve relations among trail user groups.
IMBA has members in all 50 United States and 40 other countries. IMBA members annually contribute more than one million hours to trailwork projects on public land. To date, these volunteers have created more than 5,000 (8,000 km) miles of new trails worldwide.
IMBA continues to bring out the best in mountain biking through education, trail construction, volunteer support, management advice, cash and grants for trail improvement, and worldwide leadership. IMBA gives mountain bikers a national and international voice that is heard and respected by federal land managers, environmental groups, the mainstream media, and other trail users. IMBA works closely with the U.S. Forest Service, Bureau of Land Management, National Park Service, and Parks Canada and the U.K. Forestry Commission. We also partner with a variety of state, local, and international agencies
IMBA's key projects and endeavors include the Subaru/IMBA Trail Care Crew, the National Mountain Bike Patrol, IMBA Trailbuilding Schools, IMBA Epic Rides, IMBA Trail Solutions, and a wide range of educational efforts. IMBA works to keep trails open and in good condition for everyone.