Would be a great road trip! Drive from the Alberta, Canada / Montana border to the Arizona / Mexico border with plenty of amazing stops along the way, like Yellowstone National Party, the Rocky Mountains, and the Grand Canyon.
With 4 kids this is much easier option for packing snacks on a road trip or even just to the park. They can be passed around and no complaints that "ewww so and so touched my snack!" It's a great way for me to repurpose my creamer bottles and I can save some cash on constantly buying snack bags.