Hiking through History San Francisco Bay Area

Imagine hiking along a wooded trail near San Francisco and stumbling upon the stone foundation of a crumbled building, the wooden slats of the walls caved in, the ironwork of the hinges still dangling on the burned out door. This discovery piques your interest—what is this? What’s its significance? How can you find out? Enter Hiking through History San Francisco Bay Area: Exploring the Region's Pa...