blooming wild mustard lining up a walking trail set on a levee on the shorelines of south san francisco bay area, sunnyvale,

america area bay baylands beautiful black bloom blue bright california colorful colors copy dirt flora flower footpath francisco golden green inflorescence landscape levee marsh mustard nature nobody plants ponds protected road san scenery scenic season shore shoreline sky space spring springtime sunny sunnyvale super trail vibrant walking wallpaper water wetlands wild wildflowers yellow