Road Grade
I understand there is a book or program that tells you what the grade of a road is. Also is there one that will tell you what route that maybe to narrow or windy, So I know what routes to take.
Forum Discussion
There is also a Trucker's Atlas which shows all the roads that truckers can travel. We figure if it is safe for a truck, then it is safe fir us. It is also available at truck stops and has low clearance info.
