With feral hog populations exploding all over the United States, there are a lot of great places to hunt hogs.
www.wideopenspaces.com
Forget California unless you pay a guide. Very little opportunity unless you know where to go! Most productive ranches (Dye Creek, those in the Parkfield area, Monterey, Benito, and San Luis Obispo & King counties are leased to guides). Santa Barbara County is steep, hot, and, to quote fellow guide, "Everything bites=even the plants". I don't know of any sizeable herds in Ventura County. Lompoc, near Vandenberg AFB has some but, again, the private land is sewn up pretty tight. Most of the pigs in Los Angeles are in the Lebec area on the Tejon Ranch. They have their own Game Manager-it is the largest ranch in California!
Ft Hunter-Liggett is good in some areas and the Military does allow seasonal hunting depending on training requirements. Camping is available in Los Padres National Forest but campsites will be taken early. Beware of live ordnance! Roads may be impassably muddy and it will cost you $$$$$ if you get stuck (I did in my FJ40=when you get stuck in a Landcruiser, you ARE stuck!! Took 2 days and $300 to get unstuck!)
Stockdale Mountain has a pretty good herd(s) of wild pigs, as well as blacktail deer and Tule elk (no hunting elk w/o special permit). Stockdale is a LONG hike in (no vehicle access) and summer & early fall temps may be well over 100F. Winters can be well below freezing all day. Private landowners in the are will report trespassers and guides will also report anyone who ventures off the trail! In just one year of guiding in Parkfield, we busted 58 "hunters" illegally hunting. Success will mean packing your trophy on your back for miles! Also, the serpentine soil in the area contains asbestos. We'd patrol the roads each morning (we used the ranch for camping, bird hunting, etc.) and we'd encounter trespassers. When we came up, they'd toss their rifle or bow into the ravine and claim they were just out for a morning walk (No campsite or lodge for 6-10miles!). We'd simply walk back along the road until we found a bow or a rifle. They would claim it wasn't theirs, so we'd simply smash it against a tree.
BLM Warning:
"Private property surrounds Stockdale Mountain. Do not enter through private gates or fences. Access to the public lands at Stockdale Mountain is only by foot at the BLM Access Point and parking/staging area located at the north end (dead-end) of Slacks Canyon Road. Do not stop and trespass onto private property while on Slacks Canyon Road. There is no access to public lands at Stockdale Mountain from Indian Valley Road or Big Sandy Road."
Temperatures in general are only pleasant in the Spring and Fall. Winters are cold and/or damp and foggy. Summers hot and dry. Rattlesnakes abound.