Save This Event For Later Ellsworth O-Rock Epic ENDURO Big Cedar, OK, Fri Apr 27 - Sun Apr 29, 2018 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: Big Cedar Cabins and RV Park, Big Cedar, OK 74939 Presented by Ellsworth Bikes, DIG clothing co, and Tupps! 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 .