aerial photograph of Putah Creek, also known as the Green River because of the build up of algae and vascular plants, where it flows into Lake Berryessa, Napa County, California toward the south.  Mount Diablo is visible on the horizon.
aerial photograph of Putah Creek, also known as the Green River because of the build up of algae and vascular plants, where it flows into Lake Berryessa, Napa County, California toward the south. Mount Diablo is visible on the horizon.