Events 2024 Ultra Van National Rally July 16-20, 2024Darke County Fairgrounds Campground, 800 Sweitzer Street, Greenville, OH 45331Click here for more information. 2019 Eastern Rally held at this site. 2024 CORSA Convention July 21-26, 2024Marriott Hotel at the University of Dayton, 1414 S Patterson Blvd, Dayton, OH 45409Click here for more information. 2025 CORSA Convention May 19-24, 2025Radisson (Marriott) Hotel, 3455 Skyway Dr, Santa Maria, CAMore information coming soon