Photo 1244Photograph detailA boardwalk bridge spans the stagnant green water of a salt marsh near a colorful bank.LocationAlviso Salt Marshes, Don Edward San Francisco Bay National Wildlife RefugeTaken2010-08-16 10:50:08CategoriesLandscapesWaterscapesStructuresDimensions3072 × 2048 pixelsHigh-resolution downloadLicenseCreative Commons Attribution 3.0 United States License