Hey Payton009,
You have just asked a question about one of the most fun things you can do with an airplane. There is an organization dedicated to preserving, maintaining and creating back country airstrips nation wide(Their mission statement), called "The Recreational Aviation Fountation". Their web site is: theraf.org Go there and you will have more information on back country recreation than you can emagine. In fact your state, Wisconsin, has a state liaison to the RAF: