Never rode off of hwy 33 except Ballinger Canyon, which is small and not so great. Is Ortega trail the one that used to go from Ojai to Gorman? if so, I think that has been closed for years. We normally ride out by Ridgecrest, my friend has a cabin out that way. or we ride at Charlies Place (Wagon Wheel) or Searles Station, also out that way. Sometimes we will do California City when people in the group ***** about distance away from home. The closest legal riding to Oxnard would be Gorman (Hungry Valley) or Rowher Flats.