« All Events Riverboat Days Parade August 20 @ 9:00 am - 10:00 am CDT « Brookings County GOP Picnic Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: August 20 Time: 9:00 am - 10:00 am CDT Event Category: Parade Website: https://riverboatdays.com/ Venue City of Yankton Yankton, SD 57078 United States + Google Map