Photographer Julieanne Kost captured these gorgeous images while flying over San Francisco. These photos are not color enhanced with image editing software; the color seen here is brought about by algae microorganisms in salt ponds.
The ponds near San Francisco are run by a company called Cargill, Inc. The shallow, man-made ponds produce salts from sea water or other brines. The water is eventually placed into larger ponds, where it is drained via evaporation so that the salt can be harvested. The entire process takes approximately five years. Read more about salt harvesting from ponds here and here.
See more beautiful photograhs from this series at Kost's Behance site. -Via Colossal
Images Credit: Julieanne Kost