The park includes tidelands and upland property along 8.5 miles of shoreline of the San Francisco Bay. The park extends from the City of Richmond in the north to Emeryville and Oakland in the south, ending near the east anchorage of the San Francisco Bay Bridge. The tidelands comprise rich tidal marshes, sub tidal areas, and mudflats that extend bay ward from the shoreline including the Emeryville Crescent, Albany Mudflat, and Hoffman Marsh. Much of the existing upland area is the result of fill placement in the Bay west of the historic shoreline. The shoreline reflects the unique influences of both natural systems and human intervention.