Some trails, specifically the higher difficulty ones can be dangerous for inexperienced drivers, especially if they try to go alone. A basic rule for driving off-road is to never travel alone. Traveling in groups of two or more vehicles makes it more certain at least one vehicle can get back for help. Those who do venture out into the backcountry alone should have good communications (two-way radio, mobile phone or satellite device). Inexperienced groups are advised to bring a spotter along on the more difficult trails to avoid injuries and rollovers.