The San Francisco Bay Area is one of the world's most beautiful cities. Despite a population of 7 million people, it is more greensward than asphalt jungle, more open space than hardscape. A vast quilt of countryside is tucked into the folds of the metropolis, stitched from fields, farms and woodlands, mines, creeks, and wetlands. In The Country in the City, Richard Walker tells the story of how the jigsaw geography of this greenbelt has been set into place.