I am going to be taking a road trip from Wisconsin to Yellowstone Nat'l Park this summer, and I want to hunt for geocaches on the way to and from, but I don't know a good way to find a group of caches to look for along the way. In the past, I've searched by zip code when I know I'll be in a specific city or town for a few days, but that isn't really practical in this case. Does anyone have any advice on how I can get a good group of caches to look for during my trip? All suggestions are welcome and appreciated! Thanks!