Danger to the User - Avoid hazardous arrangements and unsafe routes. Total System Planning Needs - Provide for all users as far as possible. Professional Judgement - Use professional judgement in application of all of the above criteria. The trails designated for motor vehicle use will be signed with the symbol of a man on a motorcycle. Four-wheel drive and other motorized vehicles are restricted to system roads.
Exceptions are motorized vehicles used for administrative or emergency purposes.
Many old skid trails and narrow openings have invited vehicular traffic that has resulted in ruts where there was never any road construction. These small rut roads are numerous and are a critical source of erosion. No vehicular traffic will be allowed on other than system roads open for vehicular use. Only system trails designated for vehicular use may be used by motor vehicles. Many trails have developed through indiscriminate cross-country travel, such use is causing rapid site deterioration and therefore all trails that do not meet the maintenance standards for grade and alignment can no longer be used for motorbike or other vehicular travel.