1-70-49 stock photo of California, San Francisco, Tidal marsh at sunset with bridge, Crissy Field

David Sanger and John Hart's new book San Francisco Bay: Portrait of an Estuary was released in October 2003.

A portrait of San Francisco Bay, the largest estuary system on the west coast of the Americas, this large-format photography book showcases a fragile yet essential centerpiece of life in the Bay Area.

Sponsored by the National Audubon Society and The Bay Institute,San Francisco Bay: Portrait of an Estuary is published by the University of California Press and designed by award-winning designer Jennifer Barry

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