Just did a few of Countdown's tracks of Mt. Patterson, since they have not been too updated since 08 I ran into a few of the tracks closed to bikes mainly on the west side of 395. The east side was fine but only a selected few tracks were good on the west side so be very careful riding on that side
The one area that was good between Walker and hwy 108 needs more riding by everyone to keep the route burned in so riders can see what way to go. It was a total adventure but hard at times when riders came to signs saying closed, so just be aware the west side of 395 is very limited.