You should check with the rangers about the Stonyford area.
Some of the area may be closed after the huge fire there
After Lake Mendocino check into riding Low Gap or Orr Springs Road
out to the coast. Much more fun than 20. They're both out of Ukiah.
Also, be ready for snow in Mendo NF. If the weather turns it could
be a little dangerous up there by yourself.
It's a nice route just be prepared.