Not sure if this is what you are looking for, but it does answer your question.
I travel pretty slow, just recently I left Denver to travel to my High School Reunion in Salina, Kansas. This was only a distance of 475 miles, with no interstate highway used. It took me 35 days.
No, this is not unusual for me and I do have a system in what I do, along the way. When I was racing cars at various tracks around the country, it wasn't unusual to drive 1300 miles in a day, like driving from Denver to L.A. or Nashville. Now I stop and see the towns and places I once would have driven right past.
It isn't always the speed, sometimes it is the details that one sees along the way.
Have fun, Yellowstone is a place everyone should visit, at least once in their lives.
bryan
