I tried a search, but it looks like most people stick to the SW parks.
I'm in the planning stages of a most Epic Roadtrip with my kids over a summer. I don't know if it will be summer 2015 or when, because I can't do it until my dogs die. I won't board them and it's too stressful for them to travel or stay home with the rest of my family.
I can't find a good route to visit all of the continental national parks. We've live near Seattle and have been to Crater Lake, Mt St Helens, and Mt Rainier. (We just got back from that trip, in fact!) I've been to Yellowstone too, but was pregnant and miserable, so it was a windshield tour, so I'd like to go back!
I have no set timeline since I'd be going without worrying about time off from work or school. If there's a good route that takes 8-10 weeks, that's fine! Even using route planning websites, I can only add up to 27 destinations. Including non-NP things I want to see, I probably have at least 100!