A List of Organizations that may be of Interest

American Motorcyclist Association
Americans for Responsible Recreational Access
BlueRibbon Coalition 
Bureau of Land management
Cabinet Ridge Riders
Capital Trail Riders 
Capital Trail Vehicle Association 
Citizens for Balanced Use 
Great falls Trail Bike Riders Association 
Highland cycling club 
Idaho Parks & Recreation Trail Map
Lewis & Clark ATV Club
Montana Maniacs
Montana Mountain Bike Alliance
Montana State Parks
Montana Trail Vehicle Riders Association
Montanans for Multiple Use
National Off Highway Vehicle Conservation Council
Pirate 4X4
Ravalli Co Off Road Users Association
The Dirt Concern
Treasure State ATV Association 
US Forest Service, Region 1 
Utah Shared Access Alliance 
Western Montana Trail Riders