The Motherlode Rockcrawlers use a trail rating system that is similar to the one created by Mark Smith for the Jeep Jamboree events. Every trail is rated from 1 (the easiest) to 10 (the most difficult). We will consider trails like the Rubicon a 10. These ratings are based on the trail overall, not just on one or two tough spots. Rain or snow can increase ratings by one or two points. Numerically higher-rated trails are more likely to result in vehicular damage. Runs may involve more than one trail. The run rating number will be based off the more difficult trail.

	EASY	1-3 feature trails with obstacles that are easy to navigate. In optimum weather conditions, some of these trails may not require the continual use of four-wheel drive (4WD). Ideal for SUV's, beginners and site seeing. Guest are always welcome.
	MODERATE	4-6 are moderately demanding trails on which 4WD is required. You may encounter a wide variety of challenges, including mud holes, boulders, and stream crossings, on the trail. Over sized tires are recommended. Guest are still encouraged to attend.
	MORE CHALLENGING	7-9 indicate that the likelihood of getting stuck is considerably higher. Mud holes here may be deep and rock climbing will be more arduous. We only recommend the more experienced drivers participate. The less the vehicle is equipped the more work you can expect. Vehicle damage can occur.
	MOST DIFFICULT	10 is reserved for trails like the Rubicon Trail, Dusy Ershim and Bronco Canyon. We only recommend the more experienced drivers participate. The less the vehicle is equipped the more work you can expect. Vehicle damage can occur. The club board of directors reserves the right to disallow participation based on vehicle and driver readiness.