Considering one of the oldest and better mountain bikes was built near or in Marin County.....http://www.marinbikes.com/bicycles_ms/sfstore.php.....I find your comment odd.
Hey, I’m admittedly ignorant about California, hence my request for information. I’m only as good as google at the moment, and when I searched I found lots of news entries about contested trails, trails being closed down, and heavy Sierra Club opposition. If that’s truly not the case, I have no way of knowing.