Mountain Driving Guide


This valuable resource provides the locations and descriptions of over 400 mountain passes and steep grades in 22 states.. including Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.



In an effort to keep mountain driving safe for truckers and RV’ers, this eBook provides detailed information about mountain passes and steep grades for over 700 different areas throughout 22 different states.

This guide will tell you the location of steep grades, how long they are, and what you can expect in terms of safety and drivability throughout the year. Let us take the worry out of truck driving as we will get you safely through hundreds of mountain passes.

What is the Mountain Directory?
The Mountain Directory is a collection of eBooks providing vital information for anyone driving a large or heavy vehicle through mountain passes and steep grades across 22 states. It includes locations, descriptions, grade percentages, road types, and other crucial details about over 700 mountain passes and steep grades.

Who would find the Mountain Directory useful?
Truckers, RVers, and motorhome drivers will find this directory especially beneficial as it helps in planning safer routes or preparing for steep grades they might encounter.

What kind of information does the Mountain Directory provide?
It offers detailed descriptions of steep grades, including their length, steepness, road type (two-lane, three-lane, four-lane), presence of escape ramps, switchbacks, sharp curves, speed limits, and more.

How can the Mountain Directory help in mountain driving?
By informing drivers about the conditions they may encounter, the directory enables them to make informed decisions on whether to traverse a pass and how to do so safely, potentially avoiding dangerous situations.

Does the Mountain Directory cover grades in eastern states as well?
Yes, it covers grades in both western and eastern states, debunking the myth that eastern grades are less challenging than western ones. The directory clarifies that elevation change, rather than maximum elevation, determines a grade’s difficulty.

Are there digital versions of the Mountain Directory available?
Yes, the Mountain Directory comes in downloadable eBook versions, which contain the same comprehensive information as the printed versions, including color relief maps with clickable locations for detailed descriptions.

Can the Mountain Directory prevent accidents on mountain grades?
While the directory itself cannot prevent accidents, it equips drivers with knowledge about steep grades and mountain passes, which is crucial for making safe driving decisions and preparing adequately for challenging routes.

Is the information in the Mountain Directory reliable?
The directory is compiled with great care to ensure accuracy, but it’s recommended to use it alongside more detailed road maps for comprehensive route planning. The directory aims to describe descents from summits and does not claim to include every steep grade.

Click to Learn More