Avon, South Dakota · Private OHV park (working cattle ranch)
VERIFY No current status published — verify with the agency before you ride.
Official Travel South Dakota listing confirms several hundred acres of trails from easy to extreme along the Missouri River, open weekends with limited reservable camping. 80-mile trail figure is from 2021 news coverage and may be stale; coordinates are Avon, park is NE of town at 40401 313th St.
TrailForge — national off-road park index. Always verify conditions with the managing agency before you ride.