Save This Event For Later Spotted Horse Gravel Ultra St Charles, IA, Sat Oct 6, 2018 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: 3021 St Charles Rd, St Charles, IA 50240 Presented by Spotted Horse Cycling This is a past event. If you wish to see the details for this event click, "Continue" below. If you are looking for a current event, please search the event calendar .