« All Events Colorado Dawn Patrol RC Swap Meet April 29, 2017 @ 9:00 am - 3:00 pm Details Dates: April 29, 2017 Time: 9:00 am - 3:00 pm Categories: Events Location Douglas County Fairgrounds 500 Fairgrounds Rd, Castle Rock, CO, 80104 Import Event iCal Loading Map.... Douglas County Fairgrounds500 Fairgrounds Rd - Castle Rock 39.3651098 -104.8560789