Goose, try The Cleveland National Forest in San Diego County. You'll see them all over the place strutting in the open fields. Just know where your at cause the area is scattered with Private Land. Google Earth the area and look for open grass land on National Forest. I learned the area a few years ago when I ran into a Forest Ranger and he provided me with his personal honey hole map. I'll be heading out there during the week.
Also, if you make it out there carry a pig tag and some slugs in your pocket, cause feral pigs have been migrating out of the El Capitan Reservoir area and are now residing in the Cleveland National Forest. There has been several kills documented by deer hunters. I have only seen some old rooting sign. Let me know if you head out there and how you did. Good Luck