Save This Event For Later Gold Rush Gravel Grinder Spearfish, SD, Sat Jun 10 - Sun Jun 11, 2017 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: 119 S Canyon Street, Spearfish, SD 57783 Presented by Gold Rush Gravel Grinder LLC This is a past event. If you wish to see the details for this past event click "Continue" below. If you are looking for a current event, please search the event calendar .