From napa to red bluff is 2 1/2 hours and at least another 1 1/2 to the east trail head better way of starting. The trail ends in the Tehema wilderness once there you can leave the long way out out or go the short way which is a fun trail and is stock friendly you will need 4wheel drive up this section. Red bluff is the last area to gas up. Im going ask for the weekend off. I gotta run this trail been there during hunting season and it looks good. Put me as a question mark for going.