A couple thoughts -
- Maybe list your general route to get some helpful suggestions.
- I would hop on an interstate and put together several long days until you get out of the eastern half of the country (I-80, then I-90 as an example). Same thing when returning.
- You won't run into the summer crowd until after the beginning of June. Memorial Day will be the exception. Remember that June in the mountains is 'Spring'. Not summer.
You know about all the big attractions like Yellowstone (I stay in Cody when I visit). Here's a few other places I like:
- Devil's Tower National Monument in NE Wyoming. We all remember 'Close Encounters - right ?
- Custer State Park near Rapid City, SD. Simply the most amazing state park I've visited. Bring carrots for the Donkeys and don't bump into the Bison.
- Highway 101 around the northern and western boundaries of Washington. And then down into Oregon and Norttern California.
- The Redwoods. A must see if you're anywhere close. They will make you believe in dinosaurs.
- Yosemite National Park is simply stunning.
