Fontanelle Forest is only about a 20 minutes drive on the interstate from Omaha. It's located down in Bellevue and offers 26 miles of trails throughout the 2,000 acres it sits on. There is no camping at Fontanelle but would be a great place to do some backpack training. A day pass will run you seven dollars for an adult, five for students and kids, and six for a senior discount. Plenty of hiking and wildlife.