Based on the general description the website provides, it sounds like it covers pretty similar ground to parts of the Marin Century/200K/Double. But the website doesn't specify the exact roads.
I wasn't planning on doing this ride, because I'm signed up for the Tour of Napa the next day. But it turns out I'll be house-sitting in Point Reyes Station that weekend so I'm thinking about it, especially if the route is at least a little different than what I just did on the Mt. Tam Double.
So -- any info on the route from those who've done it before is appreciated!