Mountain Biking Organizations and Associations
- International Mountain Bike Association
- USA Cycling - NORBA (National Off-Road Biking Association)
- SORBA - Southern Off-Road Mountain Bike Organization - They work with land managers in Alabama, Georgia, Florida, North Carolina, South Carolina, and Tennessee to create trails and trail systems for mountain bikers.
- NEMBA - New England Mountain Bike Association - supports mountain biking, builds and cares for public trails, and protects open space
- North Shore Mountain Bike Organization (NSMBA)
James Knott tackles the trails at Alum Creek State Park
By State
- Alabama
- Alaska
- American Samoa
- Arizona
- Arkansas
- Mountain Bike Arkansas - Information on trails in Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Airborne Mountain Bike Club - Treasure Coast Florida, working for "More Better Trails"
- Georgia
- Guam
- Hawaii
- Idaho
- Illinois
- Illinois Mountain Bike Coalition
- Shawnee Mountain Bike Association - Southern Illinois
- Chicago Area Mountain Bikers
- Kickapoo Mountain Bike Club - For the Mountain Biking Enthusiast in Central Illinois
- Gateway Off-Road Cyclists (GORC) - East St. Louis
- Peoria Area Mountain Bike Association (PAMBA)
- Quad Cities Friends of Off-Road Cycling
- Rock Cut Trail Crew - Mountain Bike Club of Rockford, Illinois. They promote responsible trail use, to prevent trail closings, and to maintain unpaved trails for cycling in the Rockford area.
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- msmtb.org - forum for mountain biking in Mississippi
- Oxford Bike Club - the authority on cycling in and around Oxford, Mississippi, and most of North Mississippi
- Ridgeland Cycling Club
- Gulf Coast Bicycle Club - endeavors to establish and maintain safe and interesting cycling routes / trails on and off road in South Mississippi
- Bulldawg Cycling - a Mississippi State University recognized organization for road and mountain biking
- Meridian VELO - Meridian, Mississippi's only touring/mtb/road/cyclocross/triathlon club
- Jackson Metro Cyclists
- TriCounty Mountain Bike Assoc - a non-profit organization of riders in central Mississippi affiliated with IMBA
- Natchez Bicycle Club - the place to find news and information about bicycling in the Natchez, Mississippi area, including Vidalia, Louisiana, Clear Springs National Forest, and the Natchez Trace
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- Upper Valley Mountain Bike Association (UVMBA) - Trail Advocacy in New Hampshire and Vermont.
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Northern Marianas Islands
- Ohio
- Ohio Mountain Bike Association - A coalition of mountain bike clubs and organizations throughout Ohio. Dedicated to preserving the future of mountain biking in Ohio.
- Athens Bicycle Club - Organizing mountain and road biking near Athens, OH
- CAMBA - Cleveland Area Mountain Bike Association - Trail building, group rides, mountain bike advocacy
- Cincinnati Off Road Alliance (CORA) - a group of volunteers dedicated to improving access for mountain bikers in the Cincinnati area
- COMBO - Central Ohio Mountain Bike Organization - Builds and maintains trails at Alum Creek State Park and AEP near Columbus, OH
- Miami Valley Mountain Bike Association (MVMBA)
CORA builds a trail at Mitchell Monument Forest near Cincinnati - Oklahoma
- Oregon
- Pennsylvania
- Puerto Rico
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Vermont Mountain Bike Association - non-profit dedicated to promoting trail advocacy through education, planning, funding and maintaining multi-use trails throughout Vermont.
- Virginia
- Virgin Islands
- Washington
- West Virginia
- West Virginia Mountain Bike Association - both racing and trail work
- Wisconsin
- Wyoming
