Save This Event For Later USECF Gravel Grinder National Championship Clinton Lake State Park Lawrence, KS, Sat Jun 24, 2017 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: 798 N 1415 Road, Clinton Lake State Park Lawrence, KS 66049 Presented by USECF 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 .