Ft Bragg is couple hrs north of Santa Rosa
Mendocino National Forest starts just above Clearlake that's just little over an hr north of you.
We used to own a house in Kenwood and and my first deer hunt with my dad in the early 50's was around Calistoga. I know lot of those ranches are leased out for hunting rights but you might be able to find a deal just for pig hunting. I'd sure be careful putting my phone on flyers out there.