| Facilities: Lost Prairie Campground provides restrooms, drinking water, and tables. Best Time To Visit: Lost Prairie Campground is open May through October. Fees: An overnight fee is charged. Accessibility: This campground is handicap accessible. Rules: The maximum length of stay is 14 days. Directions: To reach Lost Prairie Campground from Corvallis, travel east on State Highway 34 to U.S. Highway 20. Take U.S. Highway 20 east to Sweet Home. From Sweet Home, travel east on State Highway 20 for 37 miles to the campground. Map: Click here for a map to Lost Prairie Campground Reservations: Reservations are not accepted for Lost Prairie Campground. |