Muddy River Music Festival is a one day music festival on the beautiful and historic riverfront in Atchison, KS. Featuring 6 hours of music, drink and food! This festival is family and pet friendly. Muddy River Music Festival was started in 2017 and slowly grew over the first few years, with a pause for the pandemic. In 2023, the Festival is back and better than ever with a major sponsorship provided by Amberwell Health.