Thanks dcason. That is what I was looking for.
Gravel roads are not a problem for driving as long as there are not long stretches of washboard. I drive the road condition, not the speed limit, and I have never found the road condition of a gravel road to dictate exceeding the speed limit.
When driving on gravel roads I ALWAYS pull over and stop when meeting a truck, and slow down to 5-10 mph when meeting a car. In 3 trips to Alaska, including driving the motorhome up the Dalton Hwy twice to Coldfoot, the pickup 3 times to Deadhorse, and the pickup one time up the Dempster Hwy, and many miles on other gravel roads in Canada and Alaska, I have never has a broken windshield. That is because I stop for the trucks.
I have had broken windshields but they have always been on major paved highways.
It is my observation that trucks coming towards you cannot throw a rock up into your windshield. The truck throws up the rock and you drive into it. So if you are stopped, no broken windshield.
Also, I am retired and not in a rush. I have no problem with 20 and 30 mph on gravel roads. Since we want to return to Newfoundland for another visit, and I would like to tour the power plant, we feel this will be the best route.
Thanks again for the info and the blog.