Steep grades, winding roads, blind curves, falling rocks, wildlife, and unpredictable weather can present great potential risk and serious consequences. Other hazards include high winds, sightseeing motorists and bicyclists. The margin for error is reduced and minor mistakes can develop into major problems.

Stay on your side of the road, and give some extra space between your vehicle and others that you're following, since sudden stops can strike at any time. Mind the posted speed limits, and look for signs that warn you about the steep grades that may lie ahead. Keep an eye out for animals, especially at night.

What gear is best for mountain driving? On uphill and downhill driving, use a low gear, 1-3 on a manual transmission and L and 2 with an automatic. The lower gear gives the engine the power to maintain speed when driving uphill.

Gravity is a huge factor when climbing or descending a grade. Heavy loads combined with steep grades either slow your speed going up a hill or increase your speed going down one. Stick to lower gears when driving down a mountain road.