Next year, in mid October I will be visiting the U.S. for a wedding. My intention thereafter is to embark on a road trip and see some of the country. I will have about three weeks to do and see as much as I can.
My current rough plan of a route will be leaving from West Bend Wisconsin, travel west to Yellowstone National Park, visit Montana (I've always wanted to go there), head down towards San Francisco, then head towards Death Valley, Las Vegas and finish off in the Grand Canyon, flying home from Phoenix.
Now, my question is, what along that route is there to see and do? I would obviously like to see as much as possible en route, the usual 'touristy' places but is there anything off the beaten track? I'm after historical places, the Battle of the Little Big Horn site for example.
Any suggestions, tips, advice will be very welcome.