I have made a POI file for over night dry camping on the Alaskan Highway from Dawson Creek to Whitehorse, YT., that I have compiled over the years.
I can also send a Google Earth .kml file to view in that free program if desired.
It was made with sites large enough for my BH 5th and just an over night stop over. It also has a few sani dump locations along the way.
Email me (make sure to put in your email address in the text, Heartland forum lets me reply otherwise but no attachments so I will need to use email direct outside the forum) if you have use for the file. It was updated this October 2010 on a trip back to AK.
I do have the RV launching frost heaves marked in another file, about 120 miles of them in Google Earth, Garmin or GPX.