The mountain biking problem in Marin

This cyclist is clearly going too fast to avoid endangering hikers and horses on that trail.

Marin County struggles with the conflict among cyclists, hikers, and equestrians on county trails. In the Independent Journal: Marin speeds clocked on open space trails. 

Like the Independent's stories on the SMART train, the comments to this story are more important than the story itself.

Speed and thrills are the whole point for mountain bikers, who are more honest about that than city cyclists. And they are just as fanatical as their urban comrades. Marin County has caught mountain bikers carving out their own trails in Marin's open space.

Closer to home, mountain biking in McLaren Park: