Yes, I saw that there are dozens and dozens on the map—my son is in Bay area—not affected so far...
Here is live coverage I just found on Youtube...
I put out an all post, so hopefully you get an answer to your questions about the type of land. From my experience in Sonoma, it is a lot of farm land, but there is also Lake sonoma and some mountainous areas...some good video now...
http://abc7news.com/at-least-1500-structures-destroyed-in-north-bay-fires/2510205/
Have you by any chance heard of anything in Petaluma? My sister lives there, though she isn’t home at the moment (in the northwest while this happened).