Agencies and organizations are currently working to restore tidal marsh around San Francisco Bay. View these segments to learn

• how historical ecologists use a variety of historical documents to piece together how an ecosystem used to function for restoration purposes.
• how dredge material is moved to the Hamilton Field Restoration Project to fill in subsided lands and restore tidal marsh.
• about the restoration of the South Bay salt ponds.
• about the importance of San Francisco Bay to migrating birds.

Download the Viewing Guide for pre- and post-viewing discussion questions, activities, and additional resources to use with students.