On the other hand, logging, mining or off-road driving would be forbidden.

They also offer courses in tactical and off-road driving.

The problem is most pronounced in 4-wheel-drive pickup trucks and sport-utility vehicles, which have a higher ground clearance for off-road driving.

Joining a local club is the best way to find trails for off-road driving.

The vehicle has continuous six wheel drive and good capabilities for off-road driving.

If you take a car you can travel at your own pace when and where you like (although off-road driving is not permitted).

The natural terrain is uneven and can be unpredictable, so it's important that you have the proper equipment for off-road driving.

Previously, off-road driving had been a skill that many drivers found daunting.

In many national parks, off-road driving is illegal.

Where off-road driving is allowed, the National Park Service regulates it.